diff options
author | Ira Snyder <kernel@irasnyder.com> | 2006-11-20 05:20:48 -0500 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-11-26 05:52:37 -0500 |
commit | a5bbc7d94cf1dcb2100eeaf68791a401ad7ce54d (patch) | |
tree | 88812d920d7a50a63abe123a7618c5eac2c6272a /drivers/media/video/saa6588.c | |
parent | 30d9464c76743160612e7de0b2f5f656c78915d3 (diff) |
V4L/DVB (4849): Add missing spin_unlock to saa6588 decoder driver
Sparse noticed a lock imbalance in read_from_buf(). Further inspection shows
that the lock should not be held when the function exits.
This adds a spin_unlock_irqrestore(), so that every exit path of the
read_from_buf() function is consistent. The unlock was missing on an error
path.
Signed-off-by: Ira W. Snyder <devel@irasnyder.com>
Signed-off-by: Hans J. Koch <koch@hjk-az.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/saa6588.c')
-rw-r--r-- | drivers/media/video/saa6588.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/media/video/saa6588.c b/drivers/media/video/saa6588.c index a81285ca7d5..7b9859c3301 100644 --- a/drivers/media/video/saa6588.c +++ b/drivers/media/video/saa6588.c | |||
@@ -212,8 +212,10 @@ static void read_from_buf(struct saa6588 *s, struct rds_command *a) | |||
212 | if (rd_blocks > s->block_count) | 212 | if (rd_blocks > s->block_count) |
213 | rd_blocks = s->block_count; | 213 | rd_blocks = s->block_count; |
214 | 214 | ||
215 | if (!rd_blocks) | 215 | if (!rd_blocks) { |
216 | spin_unlock_irqrestore(&s->lock, flags); | ||
216 | return; | 217 | return; |
218 | } | ||
217 | 219 | ||
218 | for (i = 0; i < rd_blocks; i++) { | 220 | for (i = 0; i < rd_blocks; i++) { |
219 | if (block_to_user_buf(s, buf_ptr)) { | 221 | if (block_to_user_buf(s, buf_ptr)) { |