nsvdec: Propagate errors

Related to CVE-2011-3940.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
(cherry picked from commit c898431ca5ef2a997fe9388b650f658fb60783e5)

Conflicts:

	libavformat/nsvdec.c

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
(cherry picked from commit 0100c4b1b0736e0f5b3c98f9b0ab8acbef574888)

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
(cherry picked from commit 3253dd2b420583a7f10afa87e47b9cb73e950e2a)

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
1 file changed