]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
[media] media: s3c-camif: fix deadlock on driver probe()
authorMarek Szyprowski <m.szyprowski@samsung.com>
Thu, 28 Apr 2016 10:25:04 +0000 (07:25 -0300)
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>
Mon, 2 May 2016 13:39:58 +0000 (10:39 -0300)
commit9b15dfe0542fd6f7455c6aeca1cf711192343bf9
treee4ec03145dd7b6ffd44b8e1a2527b34022ddb670
parent243d4c0270a184e91ae589138652e19394edb1e7
[media] media: s3c-camif: fix deadlock on driver probe()

Commit 0c426c472b5585ed6e59160359c979506d45ae49 ("[media] media: Always
keep a graph walk large enough around") changed
media_device_register_entity() function to take mdev->graph_mutex. This
causes deadlock in driver probe, which calls (indirectly) this function
with ->graph_mutex taken. This patch removes taking ->graph_mutex in
driver probe to avoid deadlock. Other drivers don't take ->graph_mutex
for entity registration, so this change should be safe.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
drivers/media/platform/s3c-camif/camif-core.c