[ALSA] sound/core/: fix 3 off-by-one errors

Modules: ALSA Core

This patch fixes three off-by-one errors found by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/core/sound.c b/sound/core/sound.c
index df4ab94..4d28e52 100644 (file)
--- a/sound/core/sound.c
+++ b/sound/core/sound.c
@@ -121,7 +121,7 @@ void *snd_lookup_minor_data(unsigned int minor, int type)
        struct snd_minor *mreg;
        void *private_data;
 
-       if (minor > ARRAY_SIZE(snd_minors))
+       if (minor >= ARRAY_SIZE(snd_minors))
                return NULL;
        mutex_lock(&sound_mutex);
        mreg = snd_minors[minor];
@@ -140,7 +140,7 @@ static int snd_open(struct inode *inode, struct file *file)
        struct file_operations *old_fops;
        int err = 0;
 
-       if (minor > ARRAY_SIZE(snd_minors))
+       if (minor >= ARRAY_SIZE(snd_minors))
                return -ENODEV;
        mptr = snd_minors[minor];
        if (mptr == NULL) {

diff --git a/sound/core/sound_oss.c b/sound/core/sound_oss.c
index 6b4a4bc..4023d3b 100644 (file)
--- a/sound/core/sound_oss.c
+++ b/sound/core/sound_oss.c
@@ -46,7 +46,7 @@ void *snd_lookup_oss_minor_data(unsigned int minor, int type)
        struct snd_minor *mreg;
        void *private_data;
 
-       if (minor > ARRAY_SIZE(snd_oss_minors))
+       if (minor >= ARRAY_SIZE(snd_oss_minors))
                return NULL;
        mutex_lock(&sound_oss_mutex);
        mreg = snd_oss_minors[minor];