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s390/vmlogrdr: change return value from -ENOSYS to -EOPNOTSUPP 

Changing the return value of vmlogrdr_open() to -EOPNOTSUPP if O_NONBLOCK
is specified shouldn't have any negative side effects.
Any existing user wouldn't specify that flag since it wouldn't work anyway.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2012-09-06 17:35:00 +02:00 committed by Martin Schwidefsky
parent a11b2ef7bb
commit 745e967a49
1 changed files with 1 additions and 1 deletions
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2
drivers/s390/char/vmlogrdr.c
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@ -321,7 +321,7 @@ static int vmlogrdr_open (struct inode *inode, struct file *filp)
* only allow for blocking reads to be open
*/
if (filp->f_flags & O_NONBLOCK)
return -ENOSYS;
return -EOPNOTSUPP;
/* Besure this device hasn't already been opened */
spin_lock_bh(&logptr->priv_lock);