[PATCH] ALSA: Read buffer overflow

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Check whether index is within bounds before testing the element.

Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
---
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 8c8b273..45e0ee0 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -559,7 +559,7 @@ static int alc_pin_mode_get(struct snd_kcontrol *kcontrol,
 
 	/* Find enumerated value for current pinctl setting */
 	i = alc_pin_mode_min(dir);
-	while (alc_pin_mode_values[i] != pinctl && i <= alc_pin_mode_max(dir))
+	while (i <= alc_pin_mode_max(dir) && alc_pin_mode_values[i] != pinctl)
 		i++;
 	*valp = i <= alc_pin_mode_max(dir) ? i: alc_pin_mode_min(dir);
 	return 0;
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