Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (23 commits)
  V4L/DVB (13966): DVB-T regression fix for saa7134 cards
  V4L/DVB (13955): cx25821: fix double unlock in medusa_video_init()
  MAINTAINERS: ivtv-devel is moderated
  MAINTAINERS: Andy Walls is the new ivtv maintainer
  V4L/DVB (13941): rj54n1cb0c: remove compiler warning
  V4L/DVB sh_mobile_ceu: don't check platform_get_irq's return value against zero
  V4L/DVB mx1_camera: don't check platform_get_irq's return value against zero
  V4L/DVB (13934): tda8290: Fix FM radio easy programming standard selection for TDA8295
  V4L/DVB (13900): gspca - sunplus: Fix bridge exchanges.
  V4L/DVB (13887): tda8290: add autodetection support for TDA8295c2
  V4L/DVB (13882): gspca - stv06xx-vv6410: Ensure register STV_SCAN_RATE is zero
  V4L/DVB (13880): gspca - m5602-s5k4aa: Add vflip quirk for the Amilo Xi 2428
  V4L/DVB (13875): gspca - vc032x: Fix a possible crash with the vc0321 bridge.
  V4L/DVB (13868): gspca - sn9c20x: Fix test of unsigned.
  V4L/DVB (13858): ir-keytable: use the right header
  feature-removal-schedule: Add v4l1 drivers obsoleted by gspca sub drivers
  V4L/DVB (13622): gspca - ov534: Fix a compilation warning.
  V4L/DVB (13834): dib8000: fix compilation if !DVB_DIB8000
  V4L/DVB (13831): uvcvideo: Fix oops caused by a race condition in buffer dequeuing
  V4L/DVB (13829): uvcvideo: Fix alternate setting selection in isochronous mode
  ...

Documentation/feature-removal-schedule.txt

@@ -493,3 +493,52 @@ Why:	These two features use non-standard interfaces. There are the
 Who:	Corentin Chary <corentin.chary@gmail.com>
 
 ----------------------------
+
+What:	usbvideo quickcam_messenger driver
+When:	2.6.35
+Files:	drivers/media/video/usbvideo/quickcam_messenger.[ch]
+Why:	obsolete v4l1 driver replaced by gspca_stv06xx
+Who:	Hans de Goede <hdegoede@redhat.com>
+
+----------------------------
+
+What:	ov511 v4l1 driver
+When:	2.6.35
+Files:	drivers/media/video/ov511.[ch]
+Why:	obsolete v4l1 driver replaced by gspca_ov519
+Who:	Hans de Goede <hdegoede@redhat.com>
+
+----------------------------
+
+What:	w9968cf v4l1 driver
+When:	2.6.35
+Files:	drivers/media/video/w9968cf*.[ch]
+Why:	obsolete v4l1 driver replaced by gspca_ov519
+Who:	Hans de Goede <hdegoede@redhat.com>
+
+----------------------------
+
+What:	ovcamchip sensor framework
+When:	2.6.35
+Files:	drivers/media/video/ovcamchip/*
+Why:	Only used by obsoleted v4l1 drivers
+Who:	Hans de Goede <hdegoede@redhat.com>
+
+----------------------------
+
+What:	stv680 v4l1 driver
+When:	2.6.35
+Files:	drivers/media/video/stv680.[ch]
+Why:	obsolete v4l1 driver replaced by gspca_stv0680
+Who:	Hans de Goede <hdegoede@redhat.com>
+
+----------------------------
+
+What:	zc0301 v4l driver
+When:	2.6.35
+Files:	drivers/media/video/zc0301/*
+Why:	Duplicate functionality with the gspca_zc3xx driver, zc0301 only
+	supports 2 USB-ID's (because it only supports a limited set of
+	sensors) wich are also supported by the gspca_zc3xx driver
+	(which supports 53 USB-ID's in total)
+Who:	Hans de Goede <hdegoede@redhat.com>

MAINTAINERS

@@ -1637,9 +1637,8 @@ S:	Maintained
 F:	sound/pci/cs5535audio/
 
 CX18 VIDEO4LINUX DRIVER
-M:	Hans Verkuil <hverkuil@xs4all.nl>
 M:	Andy Walls <awalls@radix.net>
-L:	ivtv-devel@ivtvdriver.org
+L:	ivtv-devel@ivtvdriver.org (moderated for non-subscribers)
 L:	linux-media@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 W:	http://linuxtv.org
@@ -3011,8 +3010,8 @@ S:	Maintained
 F:	drivers/isdn/hardware/eicon/
 
 IVTV VIDEO4LINUX DRIVER
-M:	Hans Verkuil <hverkuil@xs4all.nl>
-L:	ivtv-devel@ivtvdriver.org
+M:	Andy Walls <awalls@radix.net>
+L:	ivtv-devel@ivtvdriver.org (moderated for non-subscribers)
 L:	linux-media@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 W:	http://www.ivtvdriver.org

drivers/media/IR/ir-keytable.c

@@ -13,7 +13,7 @@
  */
 
 
-#include <linux/usb/input.h>
+#include <linux/input.h>
 #include <media/ir-common.h>
 
 #define IR_TAB_MIN_SIZE	32

drivers/media/common/tuners/tda8290.c

@@ -144,7 +144,8 @@ static void set_audio(struct dvb_frontend *fe,
 	}
 
 	if (params->mode == V4L2_TUNER_RADIO) {
-		priv->tda8290_easy_mode = 0x01;		/* Start with MN values */
+		/* Set TDA8295 to FM radio; Start TDA8290 with MN values */
+		priv->tda8290_easy_mode = (priv->ver & TDA8295) ? 0x80 : 0x01;
 		tuner_dbg("setting to radio FM\n");
 	} else {
 		tuner_dbg("setting tda829x to system %s\n", mode);
@@ -672,16 +673,19 @@ static int tda8290_probe(struct tuner_i2c_props *i2c_props)
 static int tda8295_probe(struct tuner_i2c_props *i2c_props)
 {
 #define TDA8295_ID 0x8a
+#define TDA8295C2_ID 0x8b
 	unsigned char tda8295_id[] = { 0x2f, 0x00 };
 
 	/* detect tda8295 */
 	tuner_i2c_xfer_send(i2c_props, &tda8295_id[0], 1);
 	tuner_i2c_xfer_recv(i2c_props, &tda8295_id[1], 1);
 
-	if (tda8295_id[1] == TDA8295_ID) {
+	if ((tda8295_id[1] & 0xfe) == TDA8295_ID) {
 		if (debug)
-			printk(KERN_DEBUG "%s: tda8295 detected @ %d-%04x\n",
-			       __func__, i2c_adapter_id(i2c_props->adap),
+			printk(KERN_DEBUG "%s: %s detected @ %d-%04x\n",
+			       __func__, (tda8295_id[1] == TDA8295_ID) ?
+			       "tda8295c1" : "tda8295c2",
+			       i2c_adapter_id(i2c_props->adap),
 			       i2c_props->addr);
 		return 0;
 	}

drivers/media/dvb/frontends/dib8000.h

@@ -100,7 +100,7 @@ static inline int dib8000_set_tune_state(struct dvb_frontend *fe, enum frontend_
 static inline enum frontend_tune_state dib8000_get_tune_state(struct dvb_frontend *fe)
 {
 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
-    return CT_SHUTDOWN,
+	return CT_SHUTDOWN;
 }
 static inline void dib8000_pwm_agc_reset(struct dvb_frontend *fe)
 {

drivers/media/dvb/frontends/lgdt3305.h

@@ -54,13 +54,13 @@ struct lgdt3305_config {
 	u16 usref_qam256; /* default: 0x2a80 */
 
 	/* disable i2c repeater - 0:repeater enabled 1:repeater disabled */
-	int deny_i2c_rptr:1;
+	unsigned int deny_i2c_rptr:1;
 
 	/* spectral inversion - 0:disabled 1:enabled */
-	int spectral_inversion:1;
+	unsigned int spectral_inversion:1;
 
 	/* use RF AGC loop - 0:disabled 1:enabled */
-	int rf_agc_loop:1;
+	unsigned int rf_agc_loop:1;
 
 	enum lgdt3305_mpeg_mode mpeg_mode;
 	enum lgdt3305_tp_clock_edge tpclk_edge;

drivers/media/video/gspca/gspca.c

@@ -1815,6 +1815,8 @@ static int vidioc_qbuf(struct file *file, void *priv,
 	/* put the buffer in the 'queued' queue */
 	i = gspca_dev->fr_q;
 	gspca_dev->fr_queue[i] = index;
+	if (gspca_dev->fr_i == i)
+		gspca_dev->cur_frame = frame;
 	gspca_dev->fr_q = (i + 1) % gspca_dev->nframes;
 	PDEBUG(D_FRAM, "qbuf q:%d i:%d o:%d",
 		gspca_dev->fr_q,

drivers/media/video/gspca/m5602/m5602_s5k4aa.c

@@ -47,6 +47,12 @@ static
 			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xa 2528")
 		}
+	}, {
+		.ident = "Fujitsu-Siemens Amilo Xi 2428",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2428")
+		}
 	}, {
 		.ident = "Fujitsu-Siemens Amilo Xi 2528",
 		.matches = {

drivers/media/video/gspca/ov534.c

@@ -1533,7 +1533,7 @@ static void setexposure_96(struct gspca_dev *gspca_dev)
 static void setsharpness_96(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
-	u8 val;
+	s8 val;
 
 	val = sd->sharpness;
 	if (val < 0) {				/* auto */

drivers/media/video/gspca/sn9c20x.c

@@ -2319,7 +2319,7 @@ static void do_autogain(struct gspca_dev *gspca_dev, u16 avg_lum)
 		}
 	}
 	if (avg_lum > MAX_AVG_LUM) {
-		if (sd->gain - 1 >= 0) {
+		if (sd->gain >= 1) {
 			sd->gain--;
 			set_gain(gspca_dev);
 		}

drivers/media/video/gspca/stv06xx/stv06xx_vv6410.h

@@ -228,6 +228,7 @@ static const struct stv_init stv_bridge_init[] = {
 	/* This reg is written twice. Some kind of reset? */
 	{NULL,  0x1620, 0x80},
 	{NULL,  0x1620, 0x00},
+	{NULL,  0x1443, 0x00},
 	{NULL,  0x1423, 0x04},
 	{x1500, 0x1500, ARRAY_SIZE(x1500)},
 	{x1536, 0x1536, ARRAY_SIZE(x1536)},

drivers/media/video/gspca/sunplus.c

@@ -709,7 +709,7 @@ static void spca504B_SetSizeType(struct gspca_dev *gspca_dev)
 		spca504B_PollingDataReady(gspca_dev);
 
 		/* Init the cam width height with some values get on init ? */
-		reg_w_riv(gspca_dev, 0x31, 0, 0x04);
+		reg_w_riv(gspca_dev, 0x31, 0x0004, 0x00);
 		spca504B_WaitCmdStatus(gspca_dev);
 		spca504B_PollingDataReady(gspca_dev);
 		break;
@@ -807,14 +807,14 @@ static void init_ctl_reg(struct gspca_dev *gspca_dev)
 	default:
 /*	case BRIDGE_SPCA533: */
 /*	case BRIDGE_SPCA504B: */
-		reg_w_riv(gspca_dev, 0, 0x00, 0x21ad);	/* hue */
-		reg_w_riv(gspca_dev, 0, 0x01, 0x21ac);	/* sat/hue */
-		reg_w_riv(gspca_dev, 0, 0x00, 0x21a3);	/* gamma */
+		reg_w_riv(gspca_dev, 0, 0x21ad, 0x00);	/* hue */
+		reg_w_riv(gspca_dev, 0, 0x21ac, 0x01);	/* sat/hue */
+		reg_w_riv(gspca_dev, 0, 0x21a3, 0x00);	/* gamma */
 		break;
 	case BRIDGE_SPCA536:
-		reg_w_riv(gspca_dev, 0, 0x40, 0x20f5);
-		reg_w_riv(gspca_dev, 0, 0x01, 0x20f4);
-		reg_w_riv(gspca_dev, 0, 0x00, 0x2089);
+		reg_w_riv(gspca_dev, 0, 0x20f5, 0x40);
+		reg_w_riv(gspca_dev, 0, 0x20f4, 0x01);
+		reg_w_riv(gspca_dev, 0, 0x2089, 0x00);
 		break;
 	}
 	if (pollreg)
@@ -887,11 +887,11 @@ static int sd_init(struct gspca_dev *gspca_dev)
 	switch (sd->bridge) {
 	case BRIDGE_SPCA504B:
 		reg_w_riv(gspca_dev, 0x1d, 0x00, 0);
-		reg_w_riv(gspca_dev, 0, 0x01, 0x2306);
-		reg_w_riv(gspca_dev, 0, 0x00, 0x0d04);
-		reg_w_riv(gspca_dev, 0, 0x00, 0x2000);
-		reg_w_riv(gspca_dev, 0, 0x13, 0x2301);
-		reg_w_riv(gspca_dev, 0, 0x00, 0x2306);
+		reg_w_riv(gspca_dev, 0x00, 0x2306, 0x01);
+		reg_w_riv(gspca_dev, 0x00, 0x0d04, 0x00);
+		reg_w_riv(gspca_dev, 0x00, 0x2000, 0x00);
+		reg_w_riv(gspca_dev, 0x00, 0x2301, 0x13);
+		reg_w_riv(gspca_dev, 0x00, 0x2306, 0x00);
 		/* fall thru */
 	case BRIDGE_SPCA533:
 		spca504B_PollingDataReady(gspca_dev);
@@ -1000,7 +1000,7 @@ static int sd_start(struct gspca_dev *gspca_dev)
 			spca504B_WaitCmdStatus(gspca_dev);
 			break;
 		default:
-			reg_w_riv(gspca_dev, 0x31, 0, 0x04);
+			reg_w_riv(gspca_dev, 0x31, 0x0004, 0x00);
 			spca504B_WaitCmdStatus(gspca_dev);
 			spca504B_PollingDataReady(gspca_dev);
 			break;

drivers/media/video/gspca/vc032x.c

@@ -3009,6 +3009,10 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 		int l;
 
 		frame = gspca_get_i_frame(gspca_dev);
+		if (frame == NULL) {
+			gspca_dev->last_packet_type = DISCARD_PACKET;
+			return;
+		}
 		l = frame->data_end - frame->data;
 		if (len > frame->v4l2_buf.length - l)
 			len = frame->v4l2_buf.length - l;

drivers/media/video/mx1_camera.c

@@ -718,7 +718,7 @@ static int __init mx1_camera_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	irq = platform_get_irq(pdev, 0);
-	if (!res || !irq) {
+	if (!res || (int)irq <= 0) {
 		err = -ENODEV;
 		goto exit;
 	}

drivers/media/video/rj54n1cb0c.c

@@ -563,7 +563,7 @@ static int rj54n1_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
 	struct i2c_client *client = sd->priv;
 	struct rj54n1 *rj54n1 = to_rj54n1(client);
 	struct v4l2_rect *rect = &a->c;
-	unsigned int dummy, output_w, output_h,
+	unsigned int dummy = 0, output_w, output_h,
 		input_w = rect->width, input_h = rect->height;
 	int ret;
 

drivers/media/video/saa7134/saa7134-core.c

@@ -420,19 +420,6 @@ int saa7134_set_dmabits(struct saa7134_dev *dev)
 		ctrl |= SAA7134_MAIN_CTRL_TE5;
 		irq  |= SAA7134_IRQ1_INTE_RA2_1 |
 			SAA7134_IRQ1_INTE_RA2_0;
-
-		/* dma: setup channel 5 (= TS) */
-
-		saa_writeb(SAA7134_TS_DMA0, (dev->ts.nr_packets - 1) & 0xff);
-		saa_writeb(SAA7134_TS_DMA1,
-			((dev->ts.nr_packets - 1) >> 8) & 0xff);
-		/* TSNOPIT=0, TSCOLAP=0 */
-		saa_writeb(SAA7134_TS_DMA2,
-			(((dev->ts.nr_packets - 1) >> 16) & 0x3f) | 0x00);
-		saa_writel(SAA7134_RS_PITCH(5), TS_PACKET_SIZE);
-		saa_writel(SAA7134_RS_CONTROL(5), SAA7134_RS_CONTROL_BURST_16 |
-						  SAA7134_RS_CONTROL_ME |
-						  (dev->ts.pt_ts.dma >> 12));
 	}
 
 	/* set task conditions + field handling */

drivers/media/video/saa7134/saa7134-ts.c

@@ -250,6 +250,19 @@ int saa7134_ts_start(struct saa7134_dev *dev)
 
 	BUG_ON(dev->ts_started);
 
+	/* dma: setup channel 5 (= TS) */
+	saa_writeb(SAA7134_TS_DMA0, (dev->ts.nr_packets - 1) & 0xff);
+	saa_writeb(SAA7134_TS_DMA1,
+		((dev->ts.nr_packets - 1) >> 8) & 0xff);
+	/* TSNOPIT=0, TSCOLAP=0 */
+	saa_writeb(SAA7134_TS_DMA2,
+		(((dev->ts.nr_packets - 1) >> 16) & 0x3f) | 0x00);
+	saa_writel(SAA7134_RS_PITCH(5), TS_PACKET_SIZE);
+	saa_writel(SAA7134_RS_CONTROL(5), SAA7134_RS_CONTROL_BURST_16 |
+					  SAA7134_RS_CONTROL_ME |
+					  (dev->ts.pt_ts.dma >> 12));
+
+	/* reset hardware TS buffers */
 	saa_writeb(SAA7134_TS_SERIAL1, 0x00);
 	saa_writeb(SAA7134_TS_SERIAL1, 0x03);
 	saa_writeb(SAA7134_TS_SERIAL1, 0x00);

drivers/media/video/sh_mobile_ceu_camera.c

@@ -1827,7 +1827,7 @@ static int __devinit sh_mobile_ceu_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	irq = platform_get_irq(pdev, 0);
-	if (!res || !irq) {
+	if (!res || (int)irq <= 0) {
 		dev_err(&pdev->dev, "Not enough CEU platform resources.\n");
 		err = -ENODEV;
 		goto exit;

drivers/media/video/uvc/uvc_ctrl.c

@@ -1393,7 +1393,7 @@ uvc_ctrl_prune_entity(struct uvc_device *dev, struct uvc_entity *entity)
 	size = entity->processing.bControlSize;
 
 	for (i = 0; i < ARRAY_SIZE(blacklist); ++i) {
-		if (!usb_match_id(dev->intf, &blacklist[i].id))
+		if (!usb_match_one_id(dev->intf, &blacklist[i].id))
 			continue;
 
 		if (blacklist[i].index >= 8 * size ||

drivers/media/video/uvc/uvc_queue.c

@@ -59,9 +59,9 @@
  *    returns immediately.
  *
  *    When the buffer is full, the completion handler removes it from the irq
- *    queue, marks it as ready (UVC_BUF_STATE_DONE) and wakes its wait queue.
+ *    queue, marks it as done (UVC_BUF_STATE_DONE) and wakes its wait queue.
  *    At that point, any process waiting on the buffer will be woken up. If a
- *    process tries to dequeue a buffer after it has been marked ready, the
+ *    process tries to dequeue a buffer after it has been marked done, the
  *    dequeing will succeed immediately.
  *
  * 2. Buffers are queued, user is waiting on a buffer and the device gets
@@ -201,6 +201,7 @@ static void __uvc_query_buffer(struct uvc_buffer *buf,
 		break;
 	case UVC_BUF_STATE_QUEUED:
 	case UVC_BUF_STATE_ACTIVE:
+	case UVC_BUF_STATE_READY:
 		v4l2_buf->flags |= V4L2_BUF_FLAG_QUEUED;
 		break;
 	case UVC_BUF_STATE_IDLE:
@@ -295,13 +296,15 @@ static int uvc_queue_waiton(struct uvc_buffer *buf, int nonblocking)
 {
 	if (nonblocking) {
 		return (buf->state != UVC_BUF_STATE_QUEUED &&
-			buf->state != UVC_BUF_STATE_ACTIVE)
+			buf->state != UVC_BUF_STATE_ACTIVE &&
+			buf->state != UVC_BUF_STATE_READY)
 			? 0 : -EAGAIN;
 	}
 
 	return wait_event_interruptible(buf->wait,
 		buf->state != UVC_BUF_STATE_QUEUED &&
-		buf->state != UVC_BUF_STATE_ACTIVE);
+		buf->state != UVC_BUF_STATE_ACTIVE &&
+		buf->state != UVC_BUF_STATE_READY);
 }
 
 /*
@@ -348,6 +351,7 @@ int uvc_dequeue_buffer(struct uvc_video_queue *queue,
 	case UVC_BUF_STATE_IDLE:
 	case UVC_BUF_STATE_QUEUED:
 	case UVC_BUF_STATE_ACTIVE:
+	case UVC_BUF_STATE_READY:
 	default:
 		uvc_trace(UVC_TRACE_CAPTURE, "[E] Invalid buffer state %u "
 			"(driver bug?).\n", buf->state);
@@ -489,6 +493,7 @@ struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
 
 	spin_lock_irqsave(&queue->irqlock, flags);
 	list_del(&buf->queue);
+	buf->state = UVC_BUF_STATE_DONE;
 	if (!list_empty(&queue->irqqueue))
 		nextbuf = list_first_entry(&queue->irqqueue, struct uvc_buffer,
 					   queue);

drivers/media/video/uvc/uvc_video.c

@@ -441,7 +441,7 @@ static int uvc_video_decode_start(struct uvc_streaming *stream,
 	if (fid != stream->last_fid && buf->buf.bytesused != 0) {
 		uvc_trace(UVC_TRACE_FRAME, "Frame complete (FID bit "
 				"toggled).\n");
-		buf->state = UVC_BUF_STATE_DONE;
+		buf->state = UVC_BUF_STATE_READY;
 		return -EAGAIN;
 	}
 
@@ -470,7 +470,7 @@ static void uvc_video_decode_data(struct uvc_streaming *stream,
 	/* Complete the current frame if the buffer size was exceeded. */
 	if (len > maxlen) {
 		uvc_trace(UVC_TRACE_FRAME, "Frame complete (overflow).\n");
-		buf->state = UVC_BUF_STATE_DONE;
+		buf->state = UVC_BUF_STATE_READY;
 	}
 }
 
@@ -482,7 +482,7 @@ static void uvc_video_decode_end(struct uvc_streaming *stream,
 		uvc_trace(UVC_TRACE_FRAME, "Frame complete (EOF found).\n");
 		if (data[0] == len)
 			uvc_trace(UVC_TRACE_FRAME, "EOF in empty payload.\n");
-		buf->state = UVC_BUF_STATE_DONE;
+		buf->state = UVC_BUF_STATE_READY;
 		if (stream->dev->quirks & UVC_QUIRK_STREAM_NO_FID)
 			stream->last_fid ^= UVC_STREAM_FID;
 	}
@@ -568,8 +568,7 @@ static void uvc_video_decode_isoc(struct urb *urb, struct uvc_streaming *stream,
 		uvc_video_decode_end(stream, buf, mem,
 			urb->iso_frame_desc[i].actual_length);
 
-		if (buf->state == UVC_BUF_STATE_DONE ||
-		    buf->state == UVC_BUF_STATE_ERROR)
+		if (buf->state == UVC_BUF_STATE_READY)
 			buf = uvc_queue_next_buffer(&stream->queue, buf);
 	}
 }
@@ -627,8 +626,7 @@ static void uvc_video_decode_bulk(struct urb *urb, struct uvc_streaming *stream,
 		if (!stream->bulk.skip_payload && buf != NULL) {
 			uvc_video_decode_end(stream, buf, stream->bulk.header,
 				stream->bulk.payload_size);
-			if (buf->state == UVC_BUF_STATE_DONE ||
-			    buf->state == UVC_BUF_STATE_ERROR)
+			if (buf->state == UVC_BUF_STATE_READY)
 				buf = uvc_queue_next_buffer(&stream->queue,
 							    buf);
 		}
@@ -669,7 +667,7 @@ static void uvc_video_encode_bulk(struct urb *urb, struct uvc_streaming *stream,
 	    stream->bulk.payload_size == stream->bulk.max_payload_size) {
 		if (buf->buf.bytesused == stream->queue.buf_used) {
 			stream->queue.buf_used = 0;
-			buf->state = UVC_BUF_STATE_DONE;
+			buf->state = UVC_BUF_STATE_READY;
 			uvc_queue_next_buffer(&stream->queue, buf);
 			stream->last_fid ^= UVC_STREAM_FID;
 		}
@@ -924,10 +922,8 @@ static int uvc_init_video_bulk(struct uvc_streaming *stream,
 static int uvc_init_video(struct uvc_streaming *stream, gfp_t gfp_flags)
 {
 	struct usb_interface *intf = stream->intf;
-	struct usb_host_interface *alts;
-	struct usb_host_endpoint *ep = NULL;
-	int intfnum = stream->intfnum;
-	unsigned int bandwidth, psize, i;
+	struct usb_host_endpoint *ep;
+	unsigned int i;
 	int ret;
 
 	stream->last_fid = -1;
@@ -936,6 +932,12 @@ static int uvc_init_video(struct uvc_streaming *stream, gfp_t gfp_flags)
 	stream->bulk.payload_size = 0;
 
 	if (intf->num_altsetting > 1) {
+		struct usb_host_endpoint *best_ep = NULL;
+		unsigned int best_psize = 3 * 1024;
+		unsigned int bandwidth;
+		unsigned int uninitialized_var(altsetting);
+		int intfnum = stream->intfnum;
+
 		/* Isochronous endpoint, select the alternate setting. */
 		bandwidth = stream->ctrl.dwMaxPayloadTransferSize;
 
@@ -949,6 +951,9 @@ static int uvc_init_video(struct uvc_streaming *stream, gfp_t gfp_flags)
 		}
 
 		for (i = 0; i < intf->num_altsetting; ++i) {
+			struct usb_host_interface *alts;
+			unsigned int psize;
+
 			alts = &intf->altsetting[i];
 			ep = uvc_find_endpoint(alts,
 				stream->header.bEndpointAddress);
@@ -958,21 +963,27 @@ static int uvc_init_video(struct uvc_streaming *stream, gfp_t gfp_flags)
 			/* Check if the bandwidth is high enough. */
 			psize = le16_to_cpu(ep->desc.wMaxPacketSize);
 			psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3));
-			if (psize >= bandwidth)
-				break;
+			if (psize >= bandwidth && psize <= best_psize) {
+				altsetting = i;
+				best_psize = psize;
+				best_ep = ep;
+			}
 		}
 
-		if (i >= intf->num_altsetting) {
+		if (best_ep == NULL) {
 			uvc_trace(UVC_TRACE_VIDEO, "No fast enough alt setting "
 				"for requested bandwidth.\n");
 			return -EIO;
 		}
 
-		ret = usb_set_interface(stream->dev->udev, intfnum, i);
+		uvc_trace(UVC_TRACE_VIDEO, "Selecting alternate setting %u "
+			"(%u B/frame bandwidth).\n", altsetting, best_psize);
+
+		ret = usb_set_interface(stream->dev->udev, intfnum, altsetting);
 		if (ret < 0)
 			return ret;
 
-		ret = uvc_init_video_isoc(stream, ep, gfp_flags);
+		ret = uvc_init_video_isoc(stream, best_ep, gfp_flags);
 	} else {
 		/* Bulk endpoint, proceed to URB initialization. */
 		ep = uvc_find_endpoint(&intf->altsetting[0],

drivers/media/video/uvc/uvcvideo.h

@@ -365,8 +365,9 @@ enum uvc_buffer_state {
 	UVC_BUF_STATE_IDLE	= 0,
 	UVC_BUF_STATE_QUEUED	= 1,
 	UVC_BUF_STATE_ACTIVE	= 2,
-	UVC_BUF_STATE_DONE	= 3,
-	UVC_BUF_STATE_ERROR	= 4,
+	UVC_BUF_STATE_READY	= 3,
+	UVC_BUF_STATE_DONE	= 4,
+	UVC_BUF_STATE_ERROR	= 5,
 };
 
 struct uvc_buffer {

drivers/staging/cx25821/cx25821-medusa-video.c

@@ -860,10 +860,8 @@ int medusa_video_init(struct cx25821_dev *dev)
 
 	ret_val = medusa_set_videostandard(dev);
 
-	if (ret_val < 0) {
-		mutex_unlock(&dev->lock);
+	if (ret_val < 0)
 		return -EINVAL;
-	}
 
 	return 1;
 }