[media] ivtv: Return EFAULT when copy_from_user() fails in ivtv_write_vbi_from_user()

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If write() on a VBI device node fails due to a bad buffer pointer from
userspace, we should notify the application properly with EFAULT, per the
V4L2 API spec.

Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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This commit is contained in:

Andy Walls 2010-12-19 21:59:56 -03:00 • committed by Mauro Carvalho Chehab

parent b0c45686c8

commit ddda424999

3 changed files with 15 additions and 9 deletions

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3

drivers/media/video/ivtv/ivtv-fileops.c

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14

drivers/media/video/ivtv/ivtv-vbi.c

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7

drivers/media/video/ivtv/ivtv-vbi.h

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