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rtc: rv8803: fix handling return value of i2c_smbus_read_byte_data
authorAndrzej Hajda <a.hajda@samsung.com>
Thu, 10 Dec 2015 07:55:33 +0000 (08:55 +0100)
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>
Mon, 11 Jan 2016 19:20:00 +0000 (20:20 +0100)
commit68c85f2916222b15556ca44e2da0ee94f61f02da
treed58f5636377c5bf1fb50f71bc2ee8787dd694c45tree | snapshot (tar.gz zip)
parented13d89b08e392cd347aaa54ddc17f7d3e26b175commit | diff
rtc: rv8803: fix handling return value of i2c_smbus_read_byte_data

The function can return negative values, so its result should
be assigned to signed variable.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
drivers/rtc/rtc-rv8803.c diff | blob | blame | history