diff options
| author | Alan Stern <stern@rowland.harvard.edu> | 2012-01-24 13:35:24 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2012-01-24 16:00:35 -0800 |
| commit | f3ff9247088a0af0c192a28908dab76ff3d8871f (patch) | |
| tree | 4ff2c822bcf82213d14b2195d4f00fe470876b1d | |
| parent | 9f30ea950edfaefa51221dd26a065b3442599778 (diff) | |
Remove useless get_driver()/put_driver() calls
As part of the removal of get_driver()/put_driver(), this patch
(as1512) gets rid of various useless and unnecessary calls in several
drivers. In some cases it may be desirable to pin the driver by
calling try_module_get(), but that can be done later.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: "David S. Miller" <davem@davemloft.net>
CC: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: Michael Buesch <m@bues.ch>
CC: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/net/phy/phy_device.c | 6 | ||||
| -rw-r--r-- | drivers/pci/xen-pcifront.c | 3 | ||||
| -rw-r--r-- | drivers/ssb/main.c | 20 | ||||
| -rw-r--r-- | lib/dma-debug.c | 3 |
4 files changed, 5 insertions, 27 deletions
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index f320f466f03b..e8c42d6a7d1c 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -915,9 +915,7 @@ static int phy_probe(struct device *dev) phydev = to_phy_device(dev); - /* Make sure the driver is held. - * XXX -- Is this correct? */ - drv = get_driver(phydev->dev.driver); + drv = phydev->dev.driver; phydrv = to_phy_driver(drv); phydev->drv = phydrv; @@ -957,8 +955,6 @@ static int phy_remove(struct device *dev) if (phydev->drv->remove) phydev->drv->remove(phydev); - - put_driver(dev->driver); phydev->drv = NULL; return 0; diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c index 7cf3d2fcf56a..6f819988a8da 100644 --- a/drivers/pci/xen-pcifront.c +++ b/drivers/pci/xen-pcifront.c @@ -593,7 +593,7 @@ static pci_ers_result_t pcifront_common_process(int cmd, } pdrv = pcidev->driver; - if (get_driver(&pdrv->driver)) { + if (pdrv->driver) { if (pdrv->err_handler && pdrv->err_handler->error_detected) { dev_dbg(&pcidev->dev, "trying to call AER service\n"); @@ -623,7 +623,6 @@ static pci_ers_result_t pcifront_common_process(int cmd, } } } - put_driver(&pdrv->driver); } if (!flag) result = PCI_ERS_RESULT_NONE; diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c index bb6317fb925c..ff109ae94767 100644 --- a/drivers/ssb/main.c +++ b/drivers/ssb/main.c @@ -140,19 +140,6 @@ static void ssb_device_put(struct ssb_device *dev) put_device(dev->dev); } -static inline struct ssb_driver *ssb_driver_get(struct ssb_driver *drv) -{ - if (drv) - get_driver(&drv->drv); - return drv; -} - -static inline void ssb_driver_put(struct ssb_driver *drv) -{ - if (drv) - put_driver(&drv->drv); -} - static int ssb_device_resume(struct device *dev) { struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); @@ -250,11 +237,9 @@ int ssb_devices_freeze(struct ssb_bus *bus, struct ssb_freeze_context *ctx) ssb_device_put(sdev); continue; } - sdrv = ssb_driver_get(drv_to_ssb_drv(sdev->dev->driver)); - if (!sdrv || SSB_WARN_ON(!sdrv->remove)) { - ssb_device_put(sdev); + sdrv = drv_to_ssb_drv(sdev->dev->driver); + if (SSB_WARN_ON(!sdrv->remove)) continue; - } sdrv->remove(sdev); ctx->device_frozen[i] = 1; } @@ -293,7 +278,6 @@ int ssb_devices_thaw(struct ssb_freeze_context *ctx) dev_name(sdev->dev)); result = err; } - ssb_driver_put(sdrv); ssb_device_put(sdev); } diff --git a/lib/dma-debug.c b/lib/dma-debug.c index fea790a2b176..13ef2338be41 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -170,7 +170,7 @@ static bool driver_filter(struct device *dev) return false; /* driver filter on but not yet initialized */ - drv = get_driver(dev->driver); + drv = dev->driver; if (!drv) return false; @@ -185,7 +185,6 @@ static bool driver_filter(struct device *dev) } read_unlock_irqrestore(&driver_name_lock, flags); - put_driver(drv); return ret; } |