Skip to content

Commit

Permalink
ALSA: sound/isa/gus: Correct code taking the size of a pointer
Browse files Browse the repository at this point in the history
sizeof(share_id) is just the size of the pointer.  On the other hand,
block->share_id is an array, so its size seems more appropriate.

A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression *x;
expression f;
type T;
@@

*f(...,(T)x,...)
// </smpl>

Signed-off-by: Julia Lawall <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
  • Loading branch information
Julia Lawall authored and tiwai committed Dec 14, 2009
1 parent 84a3bd0 commit 0d64b56
Showing 1 changed file with 2 additions and 1 deletion.
3 changes: 2 additions & 1 deletion sound/isa/gus/gus_mem.c
Original file line number Diff line number Diff line change
Expand Up @@ -127,7 +127,8 @@ static struct snd_gf1_mem_block *snd_gf1_mem_share(struct snd_gf1_mem * alloc,
!share_id[2] && !share_id[3])
return NULL;
for (block = alloc->first; block; block = block->next)
if (!memcmp(share_id, block->share_id, sizeof(share_id)))
if (!memcmp(share_id, block->share_id,
sizeof(block->share_id)))
return block;
return NULL;
}
Expand Down

0 comments on commit 0d64b56

Please sign in to comment.