Messages in this thread | | | From | Florian Schmaus <> | Subject | [PATCH v5 0/3] return EINVAL error instead of BUG_ON() | Date | Wed, 16 May 2018 18:08:13 +0200 |
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This patch series makes driver_register() emit an error message and return a failure code instead of triggering a BUG_ON().
The first patch will cause driver_register() to fail gracefully if the driver's bus was not initialized while printing out the name of the faulty driver *and* the name of the involved bus. The second patch records the error code if bus_register() fails. The third and final patch of the series extends the first patch so that the recorded error code is also print out if non-zero. Otherwhise, if drv->bus->p is NULL but the error code is zero, then probably bus_register() was never called before.
Florian Schmaus (3): driver-core: return EINVAL error instead of BUG_ON() driver-core: record error on bus registration driver-core: print bus registration error value
drivers/base/bus.c | 6 +++++- drivers/base/driver.c | 12 +++++++++++- include/linux/device.h | 1 + 3 files changed, 17 insertions(+), 2 deletions(-)
-- 2.16.1
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