compat_ioctl: fix block device compat ioctl regression

The conversion of handlers to compat_blkdev_ioctl accidentally
disabled handling of most ioctl numbers on block devices because
of a typo. Fix the one line to enable it all again.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>

diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
index f84093b97f704f3d7720708b6ca035741ca6a67f..cae0a852619e372a7a2e87b53b7f818a402f8d86 100644 (file)
--- a/block/compat_ioctl.c
+++ b/block/compat_ioctl.c
@@ -581,7 +581,7 @@ static int compat_blkdev_driver_ioctl(struct inode *inode, struct file *file,
 {
        int ret;
 
-       switch (arg) {
+       switch (cmd) {
        case HDIO_GET_UNMASKINTR:
        case HDIO_GET_MULTCOUNT:
        case HDIO_GET_KEEPSETTINGS: