Auto-update from upstream

arch/ppc64/kernel/iommu.c

@@ -242,7 +242,7 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
 	dma_addr_t dma_next = 0, dma_addr;
 	unsigned long flags;
 	struct scatterlist *s, *outs, *segstart;
-	int outcount;
+	int outcount, incount;
 	unsigned long handle;
 
 	BUG_ON(direction == DMA_NONE);
@@ -252,6 +252,7 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
 
 	outs = s = segstart = &sglist[0];
 	outcount = 1;
+	incount = nelems;
 	handle = 0;
 
 	/* Init first segment length for backout at failure */
@@ -338,10 +339,10 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
 
 	DBG("mapped %d elements:\n", outcount);
 
-	/* For the sake of iommu_free_sg, we clear out the length in the
+	/* For the sake of iommu_unmap_sg, we clear out the length in the
 	 * next entry of the sglist if we didn't fill the list completely
 	 */
-	if (outcount < nelems) {
+	if (outcount < incount) {
 		outs++;
 		outs->dma_address = DMA_ERROR_CODE;
 		outs->dma_length = 0;

drivers/base/bus.c

@@ -180,7 +180,9 @@ static ssize_t driver_bind(struct device_driver *drv,
 		up(&dev->sem);
 		put_device(dev);
 	}
-	return err;
+	if (err)
+		return err;
+	return count;
 }
 static DRIVER_ATTR(bind, S_IWUSR, NULL, driver_bind);
 

drivers/pnp/card.c

@@ -312,6 +312,8 @@ struct pnp_dev * pnp_request_card_device(struct pnp_card_link *clink, const char
 	if (drv->link.driver.probe) {
 		if (drv->link.driver.probe(&dev->dev)) {
 			dev->dev.driver = NULL;
+			dev->card_link = NULL;
+			up_write(&dev->dev.bus->subsys.rwsem);
 			return NULL;
 		}
 	}

fs/ntfs/ChangeLog

@@ -175,7 +175,7 @@ ToDo/Notes:
 	  the ntfs inode in memory if present.  Also, the ntfs inode has its
 	  own locking so it does not matter if the vfs inode is locked.
 	- Fix bug in mft record writing where we forgot to set the device in
-	  the buffers when mapping them after the VM had discarded them
+	  the buffers when mapping them after the VM had discarded them.
 	  Thanks to Martin MOKREJŠ for the bug report.
 
 2.1.22 - Many bug and race fixes and error handling improvements.

fs/ntfs/aops.c

@@ -924,6 +924,7 @@ static int ntfs_write_mst_block(struct page *page,
 			LCN lcn;
 			unsigned int vcn_ofs;
 
+			bh->b_bdev = vol->sb->s_bdev;
 			/* Obtain the vcn and offset of the current block. */
 			vcn = (VCN)block << bh_size_bits;
 			vcn_ofs = vcn & vol->cluster_size_mask;

sound/ppc/pmac.c

@@ -765,7 +765,8 @@ snd_pmac_ctrl_intr(int irq, void *devid, struct pt_regs *regs)
  */
 static void snd_pmac_sound_feature(pmac_t *chip, int enable)
 {
-	ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable);
+	if (ppc_md.feature_call)
+		ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable);
 }
 
 /*