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authorLuke Nowakowski-Krijger2019-06-21 21:04:38 -0400
committerMauro Carvalho Chehab2019-06-27 07:35:24 -0400
commitc666355e60ddb4748ead3bdd983e3f7f2224aaf0 (patch)
tree9aaf66c53d48a2945072534ff2a1faea4f75d40e /net/sched/cls_matchall.c
parentb09a2ab2baeb36bf7ef7780405ad172281741c7c (diff)
media: radio-raremono: change devm_k*alloc to k*alloc
Change devm_k*alloc to k*alloc to manually allocate memory The manual allocation and freeing of memory is necessary because when the USB radio is disconnected, the memory associated with devm_k*alloc is freed. Meaning if we still have unresolved references to the radio device, then we get use-after-free errors. This patch fixes this by manually allocating memory, and freeing it in the v4l2.release callback that gets called when the last radio device exits. Reported-and-tested-by: syzbot+a4387f5b6b799f6becbf@syzkaller.appspotmail.com Signed-off-by: Luke Nowakowski-Krijger <lnowakow@eng.ucsd.edu> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil-cisco@xs4all.nl: cleaned up two small checkpatch.pl warnings] [hverkuil-cisco@xs4all.nl: prefix subject with driver name] Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'net/sched/cls_matchall.c')
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