diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2013-04-14 22:39:37 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-04-29 15:41:44 -0400 |
| commit | 858feacd2b6790c49ba9c7521f0c7ac3a5a9cb8e (patch) | |
| tree | 000b992036f82dded16fa81efe54b33aad99b59f /drivers | |
| parent | 3dce1891f3e4c334046b32c355b9e5cef50c18d9 (diff) | |
| download | linux-858feacd2b6790c49ba9c7521f0c7ac3a5a9cb8e.tar.bz2 | |
lpfc: fix races for miscdevice open vs. rmmod
mind you, I'm not sure WTF would anybody _need_ that miscdevice
at all - no IO is possible for it, opening it only pins the module
down and is seriously racy, at that.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_init.c | 33 |
1 files changed, 1 insertions, 32 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 314b4f61b9e3..8b9c191a7019 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -10368,36 +10368,6 @@ lpfc_io_resume(struct pci_dev *pdev) return; } -/** - * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace - * @inode: pointer to the inode representing the lpfcmgmt device - * @filep: pointer to the file representing the open lpfcmgmt device - * - * This routine puts a reference count on the lpfc module whenever the - * character device is opened - **/ -static int -lpfc_mgmt_open(struct inode *inode, struct file *filep) -{ - try_module_get(THIS_MODULE); - return 0; -} - -/** - * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace - * @inode: pointer to the inode representing the lpfcmgmt device - * @filep: pointer to the file representing the open lpfcmgmt device - * - * This routine removes a reference count from the lpfc module when the - * character device is closed - **/ -static int -lpfc_mgmt_release(struct inode *inode, struct file *filep) -{ - module_put(THIS_MODULE); - return 0; -} - static struct pci_device_id lpfc_id_table[] = { {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, PCI_ANY_ID, PCI_ANY_ID, }, @@ -10515,8 +10485,7 @@ static struct pci_driver lpfc_driver = { }; static const struct file_operations lpfc_mgmt_fop = { - .open = lpfc_mgmt_open, - .release = lpfc_mgmt_release, + .owner = THIS_MODULE, }; static struct miscdevice lpfc_mgmt_dev = { |