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| author | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2012-05-16 16:35:04 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-06-25 14:16:12 +0200 |
| commit | 90e614bb4c581eb588ec26f130fcdd65aa047fa8 (patch) | |
| tree | 36e7cbeb740ff76d314c6d5c93a695356c333b64 /drivers | |
| parent | [media] media: pms.c needs linux/slab.h (diff) | |
| download | linux-90e614bb4c581eb588ec26f130fcdd65aa047fa8.tar.xz linux-90e614bb4c581eb588ec26f130fcdd65aa047fa8.zip | |
[media] s5p-fimc: Fix bug in capture node open()
When video pipeline initialization fails, the ST_CAPT_BUSY flag
needs to be cleared before pm_runtime_put_sync is called.
Otherwise the runtime suspend routine tries to suspend device,
rather than just turning it off. Also fix potential null pointer
dereference in fimc_pipeline_shutdown().
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/s5p-fimc/fimc-capture.c | 2 | ||||
| -rw-r--r-- | drivers/media/video/s5p-fimc/fimc-mdevice.c | 6 |
2 files changed, 6 insertions, 2 deletions
diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 354574591908..7083107c2b37 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -499,10 +499,10 @@ static int fimc_capture_open(struct file *file) if (ret < 0) { dev_err(&fimc->pdev->dev, "Video pipeline initialization failed\n"); + clear_bit(ST_CAPT_BUSY, &fimc->state); pm_runtime_put_sync(&fimc->pdev->dev); fimc->vid_cap.refcnt--; v4l2_fh_release(file); - clear_bit(ST_CAPT_BUSY, &fimc->state); return ret; } ret = fimc_capture_ctrls_create(fimc); diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c index 6753c45631b8..7450dcdafc87 100644 --- a/drivers/media/video/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c @@ -193,9 +193,13 @@ int __fimc_pipeline_shutdown(struct fimc_pipeline *p) int fimc_pipeline_shutdown(struct fimc_pipeline *p) { - struct media_entity *me = &p->subdevs[IDX_SENSOR]->entity; + struct media_entity *me; int ret; + if (!p || !p->subdevs[IDX_SENSOR]) + return -EINVAL; + + me = &p->subdevs[IDX_SENSOR]->entity; mutex_lock(&me->parent->graph_mutex); ret = __fimc_pipeline_shutdown(p); mutex_unlock(&me->parent->graph_mutex); |