Julia Lawall edb6689386 ALSA: sound/isa/opti9xx/miro.c: eliminate possible double free ... snd_miro_probe is a static function that is only called twice in the file that defines it. At each call site, its argument is freed using snd_card_free. Thus, there is no need for snd_miro_probe to call snd_card_free on its argument on any of its error exit paths. Because snd_card_free both reads the fields of its argument and kfrees its argments, the results of the second snd_card_free should be unpredictable. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ identifier f,free,a; parameter list[n] ps; type T; expression e; @@ f(ps,T a,...) { ... when any when != a = e if(...) { ... free(a); ... return ...; } ... when any } @@ identifier r.f,r.free; expression x,a; expression list[r.n] xs; @@ * x = f(xs,a,...); if (...) { ... free(a); ... return ...; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Takashi Iwai <tiwai@suse.de>		2012-10-21 14:17:43 +02:00
..
Makefile	[ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz	2007-10-16 16:51:18 +02:00
miro.c	ALSA: sound/isa/opti9xx/miro.c: eliminate possible double free	2012-10-21 14:17:43 +02:00
opti92x-ad1848.c	ALSA: isa: Move snd_legacy_find_free_ioport to initval.h	2012-08-03 12:57:44 +02:00
opti92x-cs4231.c
opti93x.c