diff options
| author | Raghava Aditya Renukunta <RaghavaAditya.Renukunta@pmcs.com> | 2016-02-04 02:06:05 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-02-24 05:27:02 +0300 |
| commit | 222a9fb376df0f4aec32493a3fb5d18fa56979f2 (patch) | |
| tree | 08f2e2291bc4fc18bae6d901b330680f9548b297 /drivers/scsi/aacraid/linit.c | |
| parent | 6b93b7dd85dc0788eedc6ad30ff0b01ad9d4c657 (diff) | |
| download | linux-222a9fb376df0f4aec32493a3fb5d18fa56979f2.tar.xz | |
aacraid: Created new mutex for ioctl path
aac_mutex was used to create protect the ioctl path for only the compat
path, it would be make more sense to place mutex in aac_do_ioctl, which
is the main ioctl function call that handles all ioctl commands.
Created new mutex ioctl_mutex in struct aac_dev to protect switch case
in aac_do_ioctl and removed aac_mutex from aac_cfg_ioctl and
aac_compat_do_ioctl
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@pmcs.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/aacraid/linit.c')
| -rw-r--r-- | drivers/scsi/aacraid/linit.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 48e2a7979a5c..3f9c7415bd7e 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -703,23 +703,18 @@ static int aac_cfg_open(struct inode *inode, struct file *file) static long aac_cfg_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - int ret; - struct aac_dev *aac; - aac = (struct aac_dev *)file->private_data; + struct aac_dev *aac = (struct aac_dev *)file->private_data; + if (!capable(CAP_SYS_RAWIO) || aac->adapter_shutdown) return -EPERM; - mutex_lock(&aac_mutex); - ret = aac_do_ioctl(file->private_data, cmd, (void __user *)arg); - mutex_unlock(&aac_mutex); - return ret; + return aac_do_ioctl(aac, cmd, (void __user *)arg); } #ifdef CONFIG_COMPAT static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long arg) { long ret; - mutex_lock(&aac_mutex); switch (cmd) { case FSACTL_MINIPORT_REV_CHECK: case FSACTL_SENDFIB: @@ -753,7 +748,6 @@ static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long ret = -ENOIOCTLCMD; break; } - mutex_unlock(&aac_mutex); return ret; } @@ -1194,6 +1188,7 @@ static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) goto out_free_host; spin_lock_init(&aac->fib_lock); + mutex_init(&aac->ioctl_mutex); /* * Map in the registers from the adapter. */ |