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vmscan: count the number of times zone_reclaim() scans and fails
[sfrench/cifs-2.6.git]
/
sound
/
core
/
sound.c
diff --git
a/sound/core/sound.c
b/sound/core/sound.c
index 44a69bb8d4f018e953cf0de692a9fb681a4a74b0..7872a02f6ca998602b588dc6ba4d7741c3e08c1b 100644
(file)
--- 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) {