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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2012-08-27 10:59:42 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-08-28 10:08:31 +0200 |
| commit | 6b79d14e7a9f5d31b78bcd01a122f0c692e94a19 (patch) | |
| tree | 4ee76c367defa025cad0fdadc429ba0a56f79a0c /drivers/s390 | |
| parent | s390: Always use "long" for ssize_t to match size_t (diff) | |
| download | linux-6b79d14e7a9f5d31b78bcd01a122f0c692e94a19.tar.xz linux-6b79d14e7a9f5d31b78bcd01a122f0c692e94a19.zip | |
s390/dasd: fix ioctl return value
For unimplemented ioctls the dasd driver should return -ENOTTY.
Reported-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Acked-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/block/dasd_eckd.c | 2 | ||||
| -rw-r--r-- | drivers/s390/block/dasd_ioctl.c | 7 |
2 files changed, 3 insertions, 6 deletions
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 40a826a7295f..2fb2b9ea97ec 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -3804,7 +3804,7 @@ dasd_eckd_ioctl(struct dasd_block *block, unsigned int cmd, void __user *argp) case BIODASDSYMMIO: return dasd_symm_io(device, argp); default: - return -ENOIOCTLCMD; + return -ENOTTY; } } diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c index cceae70279f6..654c6921a6d4 100644 --- a/drivers/s390/block/dasd_ioctl.c +++ b/drivers/s390/block/dasd_ioctl.c @@ -498,12 +498,9 @@ int dasd_ioctl(struct block_device *bdev, fmode_t mode, break; default: /* if the discipline has an ioctl method try it. */ - if (base->discipline->ioctl) { + rc = -ENOTTY; + if (base->discipline->ioctl) rc = base->discipline->ioctl(block, cmd, argp); - if (rc == -ENOIOCTLCMD) - rc = -EINVAL; - } else - rc = -EINVAL; } dasd_put_device(base); return rc; |