Commit ca9380fd authored Jul 28, 2011 by Julia Lawall Committed by Takashi Iwai Jul 28, 2011

ALSA: sound/core/pcm_compat.c: adjust array index

Convert array index from the loop bound to the loop index.

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

)

// <smpl>
@@
expression e1,e2,ar;
@@

for(e1 = 0; e1 < e2; e1++) { <...
  ar[
- e2
+ e1
  ]
  ...> }
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

parent 8d34e6d3

sound/core/pcm_compat.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -342,7 +342,7 @@ static int snd_pcm_ioctl_xfern_compat(struct snd_pcm_substream *substream,
		kfree(bufs);
		return -EFAULT;
		}
		bufs[ch] = compat_ptr(ptr);
		bufs[i] = compat_ptr(ptr);
		bufptr++;
		}
		if (dir == SNDRV_PCM_STREAM_PLAYBACK)