From: Brandon Philips <bphilips@suse.de>
Date: Fri, 5 Oct 2007 19:26:27 +0000 (-0300)
Subject: V4L/DVB (6305): V4L: videobuf-core.c avoid NULL dereferences in videobuf-core
X-Git-Tag: v2.6.24-rc1~1463^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=49ee718ef51f4d938f80f67207e1bfa2a38897a4;p=pandora-kernel.git

V4L/DVB (6305): V4L: videobuf-core.c avoid NULL dereferences in videobuf-core

The return value of videobuf_alloc() is unchecked but this function will
return NULL on an error.  Check for NULL and make videobuf_reqbufs()
return the number of successfully allocated buffers.

Also, fix saa7146_video.c and bttv-driver.c to use this returned
buffer count.

Tested against the vivi driver.  Not tested against saa7146 or bt8xx
devices.

Signed-off-by: Brandon Philips <bphilips@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
---

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