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(parent: c4b1fcc) | patch
i2c: cadence: add IRQ check
authorSergey Shtylyov <s.shtylyov@omprussia.ru>
Sat, 10 Apr 2021 20:14:35 +0000 (23:14 +0300)
committerWolfram Sang <wsa@kernel.org>
Wed, 14 Apr 2021 08:19:38 +0000 (10:19 +0200)
commit5581c2c5d02bc63a0edb53e061c8e97cd490646e
tree354662561d2ba440390d68ea0b4e27e3d868006dtree | snapshot
parentc4b1fcc310e655fa8414696c38a84d36c00684c8commit | diff
i2c: cadence: 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: df8eb5691c48 ("i2c: Add driver for Cadence I2C controller")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
drivers/i2c/busses/i2c-cadence.c diff | blob | history
Domain: System / Kernel;