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提交 efab8211 编写于 作者: H Harvey Harrison 提交者： Mauro Carvalho Chehab
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V4L/DVB (8199): gspca: Compile warnings about NULL ptr. 

Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: NJean-Francois Moine <moinejf@free.fr>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
上级 46ccdafa
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Showing with 42 addition and 41 deletion
drivers/media/video/gspca/gspca.c
浏览文件 @ efab8211
...@@ -334,7 +334,7 @@ static void *rvmalloc(unsigned long size) ...@@ -334,7 +334,7 @@ static void *rvmalloc(unsigned long size)
/* size = PAGE_ALIGN(size); (already done) */ /* size = PAGE_ALIGN(size); (already done) */
mem = vmalloc_32(size); mem = vmalloc_32(size);
if (mem != 0) { if (mem != NULL) {
memset(mem, 0, size); memset(mem, 0, size);
adr = (unsigned long) mem; adr = (unsigned long) mem;
while ((long) size > 0) { while ((long) size > 0) {
...@@ -464,7 +464,7 @@ static void frame_free(struct gspca_dev *gspca_dev) ...@@ -464,7 +464,7 @@ static void frame_free(struct gspca_dev *gspca_dev)
int i; int i;
PDEBUG(D_STREAM, "frame free"); PDEBUG(D_STREAM, "frame free");
if (gspca_dev->frbuf != 0) { if (gspca_dev->frbuf != NULL) {
rvfree(gspca_dev->frbuf, rvfree(gspca_dev->frbuf,
gspca_dev->nframes * gspca_dev->frsz); gspca_dev->nframes * gspca_dev->frsz);
gspca_dev->frbuf = NULL; gspca_dev->frbuf = NULL;
...@@ -487,7 +487,7 @@ static void destroy_urbs(struct gspca_dev *gspca_dev) ...@@ -487,7 +487,7 @@ static void destroy_urbs(struct gspca_dev *gspca_dev)
gspca_dev->urb[i] = NULL; gspca_dev->urb[i] = NULL;
usb_kill_urb(urb); usb_kill_urb(urb);
if (urb->transfer_buffer != 0) if (urb->transfer_buffer != NULL)
usb_buffer_free(gspca_dev->dev, usb_buffer_free(gspca_dev->dev,
urb->transfer_buffer_length, urb->transfer_buffer_length,
urb->transfer_buffer, urb->transfer_buffer,
...@@ -991,7 +991,7 @@ static int dev_close(struct inode *inode, struct file *file) ...@@ -991,7 +991,7 @@ static int dev_close(struct inode *inode, struct file *file)
gspca_dev->sd_desc->close(gspca_dev); gspca_dev->sd_desc->close(gspca_dev);
mutex_unlock(&gspca_dev->usb_lock); mutex_unlock(&gspca_dev->usb_lock);
frame_free(gspca_dev); frame_free(gspca_dev);
gspca_dev->capt_file = 0; gspca_dev->capt_file = NULL;
gspca_dev->memory = GSPCA_MEMORY_NO; gspca_dev->memory = GSPCA_MEMORY_NO;
} }
file->private_data = NULL; file->private_data = NULL;
...@@ -1165,7 +1165,7 @@ static int vidioc_reqbufs(struct file *file, void *priv, ...@@ -1165,7 +1165,7 @@ static int vidioc_reqbufs(struct file *file, void *priv,
} }
/* only one file may do capture */ /* only one file may do capture */
if ((gspca_dev->capt_file != 0 && gspca_dev->capt_file != file) if ((gspca_dev->capt_file != NULL && gspca_dev->capt_file != file)
|| gspca_dev->streaming) { || gspca_dev->streaming) {
ret = -EBUSY; ret = -EBUSY;
goto out; goto out;
...@@ -1173,7 +1173,7 @@ static int vidioc_reqbufs(struct file *file, void *priv, ...@@ -1173,7 +1173,7 @@ static int vidioc_reqbufs(struct file *file, void *priv,
if (rb->count == 0) { /* unrequest? */ if (rb->count == 0) { /* unrequest? */
frame_free(gspca_dev); frame_free(gspca_dev);
gspca_dev->capt_file = 0; gspca_dev->capt_file = NULL;
} else { } else {
gspca_dev->memory = rb->memory; gspca_dev->memory = rb->memory;
ret = frame_alloc(gspca_dev, rb->count); ret = frame_alloc(gspca_dev, rb->count);
...@@ -1382,7 +1382,7 @@ static int vidiocgmbuf(struct file *file, void *priv, ...@@ -1382,7 +1382,7 @@ static int vidiocgmbuf(struct file *file, void *priv,
static int dev_mmap(struct file *file, struct vm_area_struct *vma) static int dev_mmap(struct file *file, struct vm_area_struct *vma)
{ {
struct gspca_dev *gspca_dev = file->private_data; struct gspca_dev *gspca_dev = file->private_data;
struct gspca_frame *frame = 0; struct gspca_frame *frame;
struct page *page; struct page *page;
unsigned long addr, start, size; unsigned long addr, start, size;
int i, ret; int i, ret;
...@@ -1405,6 +1405,7 @@ static int dev_mmap(struct file *file, struct vm_area_struct *vma) ...@@ -1405,6 +1405,7 @@ static int dev_mmap(struct file *file, struct vm_area_struct *vma)
goto out; goto out;
} }
frame = NULL;
for (i = 0; i < gspca_dev->nframes; ++i) { for (i = 0; i < gspca_dev->nframes; ++i) {
if (gspca_dev->frame[i].v4l2_buf.memory != V4L2_MEMORY_MMAP) { if (gspca_dev->frame[i].v4l2_buf.memory != V4L2_MEMORY_MMAP) {
PDEBUG(D_STREAM, "mmap bad memory type"); PDEBUG(D_STREAM, "mmap bad memory type");
...@@ -1416,7 +1417,7 @@ static int dev_mmap(struct file *file, struct vm_area_struct *vma) ...@@ -1416,7 +1417,7 @@ static int dev_mmap(struct file *file, struct vm_area_struct *vma)
break; break;
} }
} }
if (frame == 0) { if (frame == NULL) {
PDEBUG(D_STREAM, "mmap no frame buffer found"); PDEBUG(D_STREAM, "mmap no frame buffer found");
ret = -EINVAL; ret = -EINVAL;
goto out; goto out;
......
drivers/media/video/gspca/t613.c
浏览文件 @ efab8211
...@@ -504,31 +504,31 @@ static int init_default_parameters(struct gspca_dev *gspca_dev) ...@@ -504,31 +504,31 @@ static int init_default_parameters(struct gspca_dev *gspca_dev)
t16RegWrite(dev, 0x01, 0x0000, n3, 0x06); t16RegWrite(dev, 0x01, 0x0000, n3, 0x06);
t16RegWrite(dev, 0x01, 0x0000, n4, 0x46); t16RegWrite(dev, 0x01, 0x0000, n4, 0x46);
t16RegRead(dev, 0x0080, &test_byte, 1); t16RegRead(dev, 0x0080, &test_byte, 1);
t16RegWrite(dev, 0x00, 0x2c80, NULL, 0x0); t16RegWrite(dev, 0x00, 0x2c80, NULL, 0);
t16RegWrite(dev, 0x01, 0x0000, nset2, 0x14); t16RegWrite(dev, 0x01, 0x0000, nset2, 0x14);
t16RegWrite(dev, 0x01, 0x0000, nset3, 0x12); t16RegWrite(dev, 0x01, 0x0000, nset3, 0x12);
t16RegWrite(dev, 0x01, 0x0000, nset4, 0x12); t16RegWrite(dev, 0x01, 0x0000, nset4, 0x12);
t16RegWrite(dev, 0x00, 0x3880, NULL, 0x0); t16RegWrite(dev, 0x00, 0x3880, NULL, 0);
t16RegWrite(dev, 0x00, 0x3880, NULL, 0x0); t16RegWrite(dev, 0x00, 0x3880, NULL, 0);
t16RegWrite(dev, 0x00, 0x338e, NULL, 0x0); t16RegWrite(dev, 0x00, 0x338e, NULL, 0);
t16RegWrite(dev, 0x01, 0x0000, nset5, 0x04); t16RegWrite(dev, 0x01, 0x0000, nset5, 0x04);
t16RegWrite(dev, 0x00, 0x00a9, NULL, 0x0); t16RegWrite(dev, 0x00, 0x00a9, NULL, 0);
t16RegWrite(dev, 0x01, 0x0000, nset6, 0x22); t16RegWrite(dev, 0x01, 0x0000, nset6, 0x22);
t16RegWrite(dev, 0x00, 0x86bb, NULL, 0x0); t16RegWrite(dev, 0x00, 0x86bb, NULL, 0);
t16RegWrite(dev, 0x00, 0x4aa6, NULL, 0x0); t16RegWrite(dev, 0x00, 0x4aa6, NULL, 0);
t16RegWrite(dev, 0x01, 0x0000, missing, 0x08); t16RegWrite(dev, 0x01, 0x0000, missing, 0x08);
t16RegWrite(dev, 0x00, 0x2087, NULL, 0x0); t16RegWrite(dev, 0x00, 0x2087, NULL, 0);
t16RegWrite(dev, 0x00, 0x2088, NULL, 0x0); t16RegWrite(dev, 0x00, 0x2088, NULL, 0);
t16RegWrite(dev, 0x00, 0x2089, NULL, 0x0); t16RegWrite(dev, 0x00, 0x2089, NULL, 0);
t16RegWrite(dev, 0x01, 0x0000, nset7, 0x04); t16RegWrite(dev, 0x01, 0x0000, nset7, 0x04);
t16RegWrite(dev, 0x01, 0x0000, nset10, 0x06); t16RegWrite(dev, 0x01, 0x0000, nset10, 0x06);
t16RegWrite(dev, 0x01, 0x0000, nset8, 0x06); t16RegWrite(dev, 0x01, 0x0000, nset8, 0x06);
t16RegWrite(dev, 0x01, 0x0000, nset9, 0x04); t16RegWrite(dev, 0x01, 0x0000, nset9, 0x04);
t16RegWrite(dev, 0x00, 0x2880, NULL, 0x00); t16RegWrite(dev, 0x00, 0x2880, NULL, 0);
t16RegWrite(dev, 0x01, 0x0000, nset2, 0x14); t16RegWrite(dev, 0x01, 0x0000, nset2, 0x14);
t16RegWrite(dev, 0x01, 0x0000, nset3, 0x12); t16RegWrite(dev, 0x01, 0x0000, nset3, 0x12);
t16RegWrite(dev, 0x01, 0x0000, nset4, 0x12); t16RegWrite(dev, 0x01, 0x0000, nset4, 0x12);
...@@ -581,9 +581,9 @@ static void seteffect(struct gspca_dev *gspca_dev) ...@@ -581,9 +581,9 @@ static void seteffect(struct gspca_dev *gspca_dev)
} }
if (sd->effect == 1 || sd->effect == 4) if (sd->effect == 1 || sd->effect == 4)
t16RegWrite(dev, 0x00, 0x4aa6, NULL, 0x00); t16RegWrite(dev, 0x00, 0x4aa6, NULL, 0);
else else
t16RegWrite(dev, 0x00, 0xfaa6, NULL, 0x00); t16RegWrite(dev, 0x00, 0xfaa6, NULL, 0);
} }
static void setwhitebalance(struct gspca_dev *gspca_dev) static void setwhitebalance(struct gspca_dev *gspca_dev)
...@@ -649,7 +649,7 @@ static void setsharpness(struct gspca_dev *gspca_dev) ...@@ -649,7 +649,7 @@ static void setsharpness(struct gspca_dev *gspca_dev)
reg_to_write = 0x0aa6 + 0x1000 * sd->sharpness; reg_to_write = 0x0aa6 + 0x1000 * sd->sharpness;
t16RegWrite(dev, 0x00, reg_to_write, NULL, 0x00); t16RegWrite(dev, 0x00, reg_to_write, NULL, 0);
} }
static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val) static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
...@@ -870,16 +870,16 @@ static void sd_start(struct gspca_dev *gspca_dev) ...@@ -870,16 +870,16 @@ static void sd_start(struct gspca_dev *gspca_dev)
t16RegWrite(dev, 0x01, 0x0000, tas5130a_sensor_init[1], 0x8); t16RegWrite(dev, 0x01, 0x0000, tas5130a_sensor_init[1], 0x8);
t16RegWrite(dev, 0x01, 0x0000, tas5130a_sensor_init[2], 0x8); t16RegWrite(dev, 0x01, 0x0000, tas5130a_sensor_init[2], 0x8);
t16RegWrite(dev, 0x01, 0x0000, tas5130a_sensor_init[3], 0x8); t16RegWrite(dev, 0x01, 0x0000, tas5130a_sensor_init[3], 0x8);
t16RegWrite(dev, 0x00, 0x3c80, NULL, 0x00); t16RegWrite(dev, 0x00, 0x3c80, NULL, 0);
/* just in case and to keep sync with logs (for mine) */ /* just in case and to keep sync with logs (for mine) */
t16RegWrite(dev, 0x01, 0x0000, tas5130a_sensor_init[3], 0x8); t16RegWrite(dev, 0x01, 0x0000, tas5130a_sensor_init[3], 0x8);
t16RegWrite(dev, 0x00, 0x3c80, NULL, 0x00); t16RegWrite(dev, 0x00, 0x3c80, NULL, 0);
/* just in case and to keep sync with logs (for mine) */ /* just in case and to keep sync with logs (for mine) */
t16RegWrite(dev, 0x01, 0x0000, t1, 4); t16RegWrite(dev, 0x01, 0x0000, t1, 4);
t16RegWrite(dev, 0x01, 0x0000, t2, 6); t16RegWrite(dev, 0x01, 0x0000, t2, 6);
t16RegRead(dev, 0x0012, &test_byte, 0x1); t16RegRead(dev, 0x0012, &test_byte, 0x01);
t16RegWrite(dev, 0x01, 0x0000, t3, 0x10); t16RegWrite(dev, 0x01, 0x0000, t3, 0x10);
t16RegWrite(dev, 0x00, 0x0013, NULL, 0x00); t16RegWrite(dev, 0x00, 0x0013, NULL, 0);
t16RegWrite(dev, 0x01, 0x0000, t4, 0x4); t16RegWrite(dev, 0x01, 0x0000, t4, 0x4);
/* restart on each start, just in case, sometimes regs goes wrong /* restart on each start, just in case, sometimes regs goes wrong
* when using controls from app */ * when using controls from app */
......
drivers/media/video/gspca/zc3xx.c
浏览文件 @ efab8211
...@@ -6425,11 +6425,11 @@ static void setcontrast(struct gspca_dev *gspca_dev) ...@@ -6425,11 +6425,11 @@ static void setcontrast(struct gspca_dev *gspca_dev)
{0x18, 0x20, 0x20, 0x1c, 0x16, 0x13, 0x10, 0x0e, {0x18, 0x20, 0x20, 0x1c, 0x16, 0x13, 0x10, 0x0e,
0x0b, 0x09, 0x07, 0x00, 0x00, 0x00, 0x00, 0x01}; 0x0b, 0x09, 0x07, 0x00, 0x00, 0x00, 0x00, 0x01};
static const __u8 *gamma_tb[] = { static const __u8 *gamma_tb[] = {
0, Tgamma_1, Tgamma_2, NULL, Tgamma_1, Tgamma_2,
Tgamma_3, Tgamma_4, Tgamma_5, Tgamma_6 Tgamma_3, Tgamma_4, Tgamma_5, Tgamma_6
}; };
static const __u8 *gradient_tb[] = { static const __u8 *gradient_tb[] = {
0, Tgradient_1, Tgradient_2, NULL, Tgradient_1, Tgradient_2,
Tgradient_3, Tgradient_4, Tgradient_5, Tgradient_6 Tgradient_3, Tgradient_4, Tgradient_5, Tgradient_6
}; };
#ifdef CONFIG_VIDEO_ADV_DEBUG #ifdef CONFIG_VIDEO_ADV_DEBUG
...@@ -6544,21 +6544,21 @@ static int setlightfreq(struct gspca_dev *gspca_dev) ...@@ -6544,21 +6544,21 @@ static int setlightfreq(struct gspca_dev *gspca_dev)
gc0305_50HZ, gc0305_50HZ, gc0305_50HZ, gc0305_50HZ,
gc0305_60HZ, gc0305_60HZ}, gc0305_60HZ, gc0305_60HZ},
/* SENSOR_HDCS2020 3 */ /* SENSOR_HDCS2020 3 */
{0, 0, {NULL, NULL,
0, 0, NULL, NULL,
0, 0}, NULL, NULL},
/* SENSOR_HDCS2020b 4 */ /* SENSOR_HDCS2020b 4 */
{hdcs2020b_NoFliker, hdcs2020b_NoFliker, {hdcs2020b_NoFliker, hdcs2020b_NoFliker,
hdcs2020b_50HZ, hdcs2020b_50HZ, hdcs2020b_50HZ, hdcs2020b_50HZ,
hdcs2020b_60HZ, hdcs2020b_60HZ}, hdcs2020b_60HZ, hdcs2020b_60HZ},
/* SENSOR_HV7131B 5 */ /* SENSOR_HV7131B 5 */
{0, 0, {NULL, NULL,
0, 0, NULL, NULL,
0, 0}, NULL, NULL},
/* SENSOR_HV7131C 6 */ /* SENSOR_HV7131C 6 */
{0, 0, {NULL, NULL,
0, 0, NULL, NULL,
0, 0}, NULL, NULL},
/* SENSOR_ICM105A 7 */ /* SENSOR_ICM105A 7 */
{icm105a_NoFliker, icm105a_NoFlikerScale, {icm105a_NoFliker, icm105a_NoFlikerScale,
icm105a_50HZ, icm105a_50HZScale, icm105a_50HZ, icm105a_50HZScale,
...@@ -6572,9 +6572,9 @@ static int setlightfreq(struct gspca_dev *gspca_dev) ...@@ -6572,9 +6572,9 @@ static int setlightfreq(struct gspca_dev *gspca_dev)
OV7620_50HZ, OV7620_50HZ, OV7620_50HZ, OV7620_50HZ,
OV7620_60HZ, OV7620_60HZ}, OV7620_60HZ, OV7620_60HZ},
/* SENSOR_OV7630C 10 */ /* SENSOR_OV7630C 10 */
{0, 0, {NULL, NULL,
0, 0, NULL, NULL,
0, 0}, NULL, NULL},
/* SENSOR_PAS106 11 */ /* SENSOR_PAS106 11 */
{pas106b_NoFliker, pas106b_NoFliker, {pas106b_NoFliker, pas106b_NoFliker,
pas106b_50HZ, pas106b_50HZ, pas106b_50HZ, pas106b_50HZ,
...@@ -6606,7 +6606,7 @@ static int setlightfreq(struct gspca_dev *gspca_dev) ...@@ -6606,7 +6606,7 @@ static int setlightfreq(struct gspca_dev *gspca_dev)
if (!mode) if (!mode)
i++; /* 640x480 */ i++; /* 640x480 */
zc3_freq = freq_tb[(int) sd->sensor][i]; zc3_freq = freq_tb[(int) sd->sensor][i];
if (zc3_freq != 0) { if (zc3_freq != NULL) {
usb_exchange(gspca_dev->dev, zc3_freq); usb_exchange(gspca_dev->dev, zc3_freq);
switch (sd->sensor) { switch (sd->sensor) {
case SENSOR_GC0305: case SENSOR_GC0305:
......
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