From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 22 Oct 2007 15:20:10 +0000 (+0200)
Subject: [ALSA] hda-codec - Fix possible array overflow
X-Git-Tag: v2.6.24-rc1~35^2~1
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=41923e441305728ba3640e773e55d16e4769145c

[ALSA] hda-codec - Fix possible array overflow

dac_nids arrays in each codec support code may have up to 5 items
when assigned from the auto-configurator.  Some codec codes have
less numbers than the possible max.  This patch defines the constant
and fixes the array definitions.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---

diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index a708effdcdad..20c5e6250374 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -310,16 +310,17 @@ enum {
 
 extern const char *auto_pin_cfg_labels[AUTO_PIN_LAST];
 
+#define AUTO_CFG_MAX_OUTS	5
+
 struct auto_pin_cfg {
 	int line_outs;
-	hda_nid_t line_out_pins[5]; /* sorted in the order of
-				     * Front/Surr/CLFE/Side
-				     */
+	/* sorted in the order of Front/Surr/CLFE/Side */
+	hda_nid_t line_out_pins[AUTO_CFG_MAX_OUTS];
 	int speaker_outs;
-	hda_nid_t speaker_pins[5];
+	hda_nid_t speaker_pins[AUTO_CFG_MAX_OUTS];
 	int hp_outs;
 	int line_out_type;	/* AUTO_PIN_XXX_OUT */
-	hda_nid_t hp_pins[5];
+	hda_nid_t hp_pins[AUTO_CFG_MAX_OUTS];
 	hda_nid_t input_pins[AUTO_PIN_LAST];
 	hda_nid_t dig_out_pin;
 	hda_nid_t dig_in_pin;
diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 9bf38f92ba74..0ee8ae4d4410 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -72,7 +72,7 @@ struct ad198x_spec {
 	unsigned int num_kctl_alloc, num_kctl_used;
 	struct snd_kcontrol_new *kctl_alloc;
 	struct hda_input_mux private_imux;
-	hda_nid_t private_dac_nids[4];
+	hda_nid_t private_dac_nids[AUTO_CFG_MAX_OUTS];
 
 	unsigned int jack_present :1;
 
diff --git a/sound/pci/hda/patch_cmedia.c b/sound/pci/hda/patch_cmedia.c
index 2468f3171222..6c54793bf424 100644
--- a/sound/pci/hda/patch_cmedia.c
+++ b/sound/pci/hda/patch_cmedia.c
@@ -50,7 +50,7 @@ struct cmi_spec {
 
 	/* playback */
 	struct hda_multi_out multiout;
-	hda_nid_t dac_nids[4];		/* NID for each DAC */
+	hda_nid_t dac_nids[AUTO_CFG_MAX_OUTS];	/* NID for each DAC */
 	int num_dacs;
 
 	/* capture */
@@ -73,7 +73,6 @@ struct cmi_spec {
 	unsigned int pin_def_confs;
 
 	/* multichannel pins */
-	hda_nid_t multich_pin[4];	/* max 8-channel */
 	struct hda_verb multi_init[9];	/* 2 verbs for each pin + terminator */
 };
 
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 7df9058b234c..6aa073986747 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -85,7 +85,7 @@ struct conexant_spec {
 	unsigned int num_kctl_alloc, num_kctl_used;
 	struct snd_kcontrol_new *kctl_alloc;
 	struct hda_input_mux private_imux;
-	hda_nid_t private_dac_nids[4];
+	hda_nid_t private_dac_nids[AUTO_CFG_MAX_OUTS];
 
 };
 
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 53b0428abfc2..d9f78c809ee9 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -238,7 +238,7 @@ struct alc_spec {
 	unsigned int num_kctl_alloc, num_kctl_used;
 	struct snd_kcontrol_new *kctl_alloc;
 	struct hda_input_mux private_imux;
-	hda_nid_t private_dac_nids[5];
+	hda_nid_t private_dac_nids[AUTO_CFG_MAX_OUTS];
 
 	/* hooks */
 	void (*init_hook)(struct hda_codec *codec);
diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index 33b5e1ffa817..4cdf3e6df4ba 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -114,7 +114,7 @@ struct via_spec {
 	unsigned int num_kctl_alloc, num_kctl_used;
 	struct snd_kcontrol_new *kctl_alloc;
 	struct hda_input_mux private_imux;
-	hda_nid_t private_dac_nids[4];	
+	hda_nid_t private_dac_nids[AUTO_CFG_MAX_OUTS];
 
 #ifdef CONFIG_SND_HDA_POWER_SAVE
 	struct hda_loopback_check loopback;