i2c: mlxbf: add IRQ check
authorSergey Shtylyov <s.shtylyov@omprussia.ru>
Sat, 10 Apr 2021 20:20:49 +0000 (23:20 +0300)
committerWolfram Sang <wsa@kernel.org>
Wed, 14 Apr 2021 08:20:45 +0000 (10:20 +0200)
commit0d3bf53e897dce943b98d975bbde77156af6cd81
treef8442ac4790c6b553128c6d26f0500a09e701fa9
parentc5e5f7a8d931fb4beba245bdbc94734175fda9de
i2c: mlxbf: add IRQ check

The driver neglects to check the result of platform_get_irq()'s call and
blithely passes the negative error codes to devm_request_irq() (which
takes *unsigned* IRQ #), causing it to fail with -EINVAL, overriding
an original error code.  Stop calling devm_request_irq() with invalid
IRQ #s.

Fixes: b5b5b32081cd ("i2c: mlxbf: I2C SMBus driver for Mellanox BlueField SoC")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
drivers/i2c/busses/i2c-mlxbf.c