diff options
Diffstat (limited to 'drivers/ide/ide-floppy_ioctl.c')
| -rw-r--r-- | drivers/ide/ide-floppy_ioctl.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/ide/ide-floppy_ioctl.c b/drivers/ide/ide-floppy_ioctl.c index 9c2288234de..a22ca846701 100644 --- a/drivers/ide/ide-floppy_ioctl.c +++ b/drivers/ide/ide-floppy_ioctl.c @@ -5,6 +5,7 @@ #include <linux/kernel.h> #include <linux/ide.h> #include <linux/cdrom.h> +#include <linux/mutex.h> #include <asm/unaligned.h> @@ -31,6 +32,7 @@ * On exit we set nformats to the number of records we've actually initialized. */ +static DEFINE_MUTEX(ide_floppy_ioctl_mutex); static int ide_floppy_get_format_capacities(ide_drive_t *drive, struct ide_atapi_pc *pc, int __user *arg) @@ -275,23 +277,27 @@ int ide_floppy_ioctl(ide_drive_t *drive, struct block_device *bdev, void __user *argp = (void __user *)arg; int err; - if (cmd == CDROMEJECT || cmd == CDROM_LOCKDOOR) - return ide_floppy_lockdoor(drive, &pc, arg, cmd); + mutex_lock(&ide_floppy_ioctl_mutex); + if (cmd == CDROMEJECT || cmd == CDROM_LOCKDOOR) { + err = ide_floppy_lockdoor(drive, &pc, arg, cmd); + goto out; + } err = ide_floppy_format_ioctl(drive, &pc, mode, cmd, argp); if (err != -ENOTTY) - return err; + goto out; /* * skip SCSI_IOCTL_SEND_COMMAND (deprecated) * and CDROM_SEND_PACKET (legacy) ioctls */ if (cmd != CDROM_SEND_PACKET && cmd != SCSI_IOCTL_SEND_COMMAND) - err = scsi_cmd_ioctl(bdev->bd_disk->queue, bdev->bd_disk, - mode, cmd, argp); + err = scsi_cmd_blk_ioctl(bdev, mode, cmd, argp); if (err == -ENOTTY) err = generic_ide_ioctl(drive, bdev, cmd, arg); +out: + mutex_unlock(&ide_floppy_ioctl_mutex); return err; } |