From c19bcdc64a13c6d7eedfdb46d705531e24e69cad Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 8 Nov 2006 15:48:43 +0100 Subject: [PATCH] [ALSA] ac97 - Fix potential negative array index Fix the case cidx2 >= 0 and cidx2 < 0 which may result in negative array index. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- sound/pci/ac97/ac97_patch.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/sound/pci/ac97/ac97_patch.c b/sound/pci/ac97/ac97_patch.c index f63025e99a..e813968e0c 100644 --- a/sound/pci/ac97/ac97_patch.c +++ b/sound/pci/ac97/ac97_patch.c @@ -1467,7 +1467,9 @@ static void patch_ad1881_chained(struct snd_ac97 * ac97, int unchained_idx, int snd_ac97_write_cache(ac97, AC97_AD_CODEC_CFG, 0x0002); // ID1C ac97->spec.ad18xx.codec_cfg[unchained_idx] = 0x0002; if (cidx1 >= 0) { - if (patch_ad1881_chained1(ac97, cidx1, 0x0006)) // SDIE | ID1C + if (cidx2 < 0) + patch_ad1881_chained1(ac97, cidx1, 0); + else if (patch_ad1881_chained1(ac97, cidx1, 0x0006)) // SDIE | ID1C patch_ad1881_chained1(ac97, cidx2, 0); else if (patch_ad1881_chained1(ac97, cidx2, 0x0006)) // SDIE | ID1C patch_ad1881_chained1(ac97, cidx1, 0); -- 2.39.5