gpio: mt7621: report failure of devm_kasprintf()

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[ Upstream commit 59d646c775 ]

kasprintf() may return NULL on failure of internal allocation thus the
assigned  label  is not safe if not explicitly checked. On error
mediatek_gpio_bank_probe() returns negative values so -ENOMEM in the
(unlikely) failure case should be fine here.

Fixes: 4ba9c3afda ("gpio: mt7621: Add a driver for MT7621")
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Nicholas Mc Guire 2018-11-21 19:06:12 +01:00 • committed by Greg Kroah-Hartman

parent 4dc2acb15d

commit 43902c262b

1 changed files with 2 additions and 0 deletions

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drivers/gpio/gpio-mt7621.c

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