ASoC: sta32x: Fix array access overflow

commit 025c3fa9256d4c54506b7a29dc3befac54f5c68d upstream.

Preset EQ enum of sta32x codec driver declares too many number of
items and it may lead to the access over the actual array size.

Use SOC_ENUM_SINGLE_DECL() helper and it's automatically fixed.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/sound/soc/codecs/sta32x.c b/sound/soc/codecs/sta32x.c
index dc3a941..e05da91 100644 (file)
--- a/sound/soc/codecs/sta32x.c
+++ b/sound/soc/codecs/sta32x.c
@@ -147,42 +147,42 @@ static const unsigned int sta32x_limiter_drc_release_tlv[] = {
        13, 16, TLV_DB_SCALE_ITEM(-1500, 300, 0),
 };
 
-static const struct soc_enum sta32x_drc_ac_enum =
-       SOC_ENUM_SINGLE(STA32X_CONFD, STA32X_CONFD_DRC_SHIFT,
-                       2, sta32x_drc_ac);
-static const struct soc_enum sta32x_auto_eq_enum =
-       SOC_ENUM_SINGLE(STA32X_AUTO1, STA32X_AUTO1_AMEQ_SHIFT,
-                       3, sta32x_auto_eq_mode);
-static const struct soc_enum sta32x_auto_gc_enum =
-       SOC_ENUM_SINGLE(STA32X_AUTO1, STA32X_AUTO1_AMGC_SHIFT,
-                       4, sta32x_auto_gc_mode);
-static const struct soc_enum sta32x_auto_xo_enum =
-       SOC_ENUM_SINGLE(STA32X_AUTO2, STA32X_AUTO2_XO_SHIFT,
-                       16, sta32x_auto_xo_mode);
-static const struct soc_enum sta32x_preset_eq_enum =
-       SOC_ENUM_SINGLE(STA32X_AUTO3, STA32X_AUTO3_PEQ_SHIFT,
-                       32, sta32x_preset_eq_mode);
-static const struct soc_enum sta32x_limiter_ch1_enum =
-       SOC_ENUM_SINGLE(STA32X_C1CFG, STA32X_CxCFG_LS_SHIFT,
-                       3, sta32x_limiter_select);
-static const struct soc_enum sta32x_limiter_ch2_enum =
-       SOC_ENUM_SINGLE(STA32X_C2CFG, STA32X_CxCFG_LS_SHIFT,
-                       3, sta32x_limiter_select);
-static const struct soc_enum sta32x_limiter_ch3_enum =
-       SOC_ENUM_SINGLE(STA32X_C3CFG, STA32X_CxCFG_LS_SHIFT,
-                       3, sta32x_limiter_select);
-static const struct soc_enum sta32x_limiter1_attack_rate_enum =
-       SOC_ENUM_SINGLE(STA32X_L1AR, STA32X_LxA_SHIFT,
-                       16, sta32x_limiter_attack_rate);
-static const struct soc_enum sta32x_limiter2_attack_rate_enum =
-       SOC_ENUM_SINGLE(STA32X_L2AR, STA32X_LxA_SHIFT,
-                       16, sta32x_limiter_attack_rate);
-static const struct soc_enum sta32x_limiter1_release_rate_enum =
-       SOC_ENUM_SINGLE(STA32X_L1AR, STA32X_LxR_SHIFT,
-                       16, sta32x_limiter_release_rate);
-static const struct soc_enum sta32x_limiter2_release_rate_enum =
-       SOC_ENUM_SINGLE(STA32X_L2AR, STA32X_LxR_SHIFT,
-                       16, sta32x_limiter_release_rate);
+static SOC_ENUM_SINGLE_DECL(sta32x_drc_ac_enum,
+                           STA32X_CONFD, STA32X_CONFD_DRC_SHIFT,
+                           sta32x_drc_ac);
+static SOC_ENUM_SINGLE_DECL(sta32x_auto_eq_enum,
+                           STA32X_AUTO1, STA32X_AUTO1_AMEQ_SHIFT,
+                           sta32x_auto_eq_mode);
+static SOC_ENUM_SINGLE_DECL(sta32x_auto_gc_enum,
+                           STA32X_AUTO1, STA32X_AUTO1_AMGC_SHIFT,
+                           sta32x_auto_gc_mode);
+static SOC_ENUM_SINGLE_DECL(sta32x_auto_xo_enum,
+                           STA32X_AUTO2, STA32X_AUTO2_XO_SHIFT,
+                           sta32x_auto_xo_mode);
+static SOC_ENUM_SINGLE_DECL(sta32x_preset_eq_enum,
+                           STA32X_AUTO3, STA32X_AUTO3_PEQ_SHIFT,
+                           sta32x_preset_eq_mode);
+static SOC_ENUM_SINGLE_DECL(sta32x_limiter_ch1_enum,
+                           STA32X_C1CFG, STA32X_CxCFG_LS_SHIFT,
+                           sta32x_limiter_select);
+static SOC_ENUM_SINGLE_DECL(sta32x_limiter_ch2_enum,
+                           STA32X_C2CFG, STA32X_CxCFG_LS_SHIFT,
+                           sta32x_limiter_select);
+static SOC_ENUM_SINGLE_DECL(sta32x_limiter_ch3_enum,
+                           STA32X_C3CFG, STA32X_CxCFG_LS_SHIFT,
+                           sta32x_limiter_select);
+static SOC_ENUM_SINGLE_DECL(sta32x_limiter1_attack_rate_enum,
+                           STA32X_L1AR, STA32X_LxA_SHIFT,
+                           sta32x_limiter_attack_rate);
+static SOC_ENUM_SINGLE_DECL(sta32x_limiter2_attack_rate_enum,
+                           STA32X_L2AR, STA32X_LxA_SHIFT,
+                           sta32x_limiter_attack_rate);
+static SOC_ENUM_SINGLE_DECL(sta32x_limiter1_release_rate_enum,
+                           STA32X_L1AR, STA32X_LxR_SHIFT,
+                           sta32x_limiter_release_rate);
+static SOC_ENUM_SINGLE_DECL(sta32x_limiter2_release_rate_enum,
+                           STA32X_L2AR, STA32X_LxR_SHIFT,
+                           sta32x_limiter_release_rate);
 
 /* byte array controls for setting biquad, mixer, scaling coefficients;
  * for biquads all five coefficients need to be set in one go,