fs/compat_ioctl.c: suppress two warnings

fs/compat_ioctl.c: In function 'do_ioctl_trans':
fs/compat_ioctl.c:534: warning: 'karg' may be used uninitialized in this function
fs/compat_ioctl.c:533: warning: 'kcmd' may be used uninitialized in this function
fs/compat_ioctl.c:656: warning: 'ret' may be used uninitialized in this function

Reduces text size by 44 bytes.

If someone calls one of these functions with an unexpected argument, the
code's buggy as-is.

Amerigo Wang <amwang@redhat.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Acked-by: Arnd Bergmann <arnd@arndb.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 0ca9ec4..6d55b61 100644 (file)
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -545,7 +545,7 @@ static int mt_ioctl_trans(unsigned int fd, unsigned int cmd, void __user *argp)
                kcmd = MTIOCPOS;
                karg = &pos;
                break;
-       case MTIOCGET32:
+       default:        /* MTIOCGET32 */
                kcmd = MTIOCGET;
                karg = &get;
                break;
@@ -663,7 +663,7 @@ static int raw_ioctl(unsigned fd, unsigned cmd,
 
         switch (cmd) {
         case RAW_SETBIND:
-        case RAW_GETBIND: {
+       default: {      /* RAW_GETBIND */
                 struct raw_config_request req;
                 mm_segment_t oldfs = get_fs();