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-rw-r--r--sound/core/sound.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/core/sound.c b/sound/core/sound.c
index 44a69bb8d4f..7872a02f6ca 100644
--- a/sound/core/sound.c
+++ b/sound/core/sound.c
@@ -152,6 +152,10 @@ static int __snd_open(struct inode *inode, struct file *file)
}
old_fops = file->f_op;
file->f_op = fops_get(mptr->f_ops);
+ if (file->f_op == NULL) {
+ file->f_op = old_fops;
+ return -ENODEV;
+ }
if (file->f_op->open)
err = file->f_op->open(inode, file);
if (err) {