Fix error handling in HDIO_GETGEO compat wrapper

Don't clobber error from sys_ioctl in HDIO_GETGEO compat wrapper.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 6972d24..d92bc3e 100644 (file)
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -684,8 +684,10 @@ static int hdio_getgeo(unsigned int fd, unsigned int cmd, unsigned long arg)
        if (!err) {
                err = copy_to_user (ugeo, &geo, 4);
                err |= __put_user (geo.start, &ugeo->start);
+               if (err)
+                       err = -EFAULT;
        }
-       return err ? -EFAULT : 0;
+       return err;
 }
 
 static int hdio_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg)