i2c: highlander: add IRQ check

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The driver is written as if platform_get_irq() returns 0 on errors (while
actually it returns a negative error code), blithely passing these error
codes to request_irq() (which takes *unsigned* IRQ #) -- which fails with
-EINVAL. Add the necessary error check to the pre-existing *if* statement
forcing the driver into the polling mode...

Fixes: 4ad48e6ab1 ("i2c: Renesas Highlander FPGA SMBus support")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

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Sergey Shtylyov 2021-05-30 22:13:45 +03:00 • committed by Wolfram Sang

parent a6b8bb6a81

commit f16a3bb69a

1 changed files with 1 additions and 1 deletions

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drivers/i2c/busses/i2c-highlander.c

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