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V4L/DVB (12337): ivtv: Read buffer overflow

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This mistakenly tests against sizeof(freqs) instead of the array size. Due to
the mask the only illegal value possible was 3.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Roel Kluin 2009-07-23 21:46:57 -03:00 committed by Mauro Carvalho Chehab
parent 5b766182a1
commit ed18d0c87e
1 changed files with 2 additions and 1 deletions
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3
drivers/media/video/ivtv/ivtv-controls.c
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@ -17,6 +17,7 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/kernel.h>
#include "ivtv-driver.h"
#include "ivtv-cards.h"
@ -281,7 +282,7 @@ int ivtv_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
idx = p.audio_properties & 0x03;
/* The audio clock of the digitizer must match the codec sample
rate otherwise you get some very strange effects. */
if (idx < sizeof(freqs))
if (idx < ARRAY_SIZE(freqs))
ivtv_call_all(itv, audio, s_clock_freq, freqs[idx]);
return err;
}