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authorDavid Woodhouse <David.Woodhouse@intel.com>2009-06-08 12:21:27 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-06-08 12:21:27 +0100
commite635a01ea0a16cf7cd31ecd2305870385dca9be6 (patch)
treec7153e7dee5caf6ac90d85694ff27e4d0b606290 /drivers/base/driver.c
parent143070e74630b9557e1bb64d899ff2cc5a1dcb48 (diff)
parent947391cfbaa3b08558844c0b187bcd0223c3f660 (diff)
Merge branch 'next-mtd' of git://aeryn.fluff.org.uk/bjdooks/linux
Diffstat (limited to 'drivers/base/driver.c')
-rw-r--r--drivers/base/driver.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index c51f11bb29ae..8ae0f63602e0 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -257,6 +257,10 @@ EXPORT_SYMBOL_GPL(driver_register);
*/
void driver_unregister(struct device_driver *drv)
{
+ if (!drv || !drv->p) {
+ WARN(1, "Unexpected driver unregister!\n");
+ return;
+ }
driver_remove_groups(drv, drv->groups);
bus_remove_driver(drv);
}