i2c: mt65xx: fix NULL ptr dereference

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Since commit abf4923e97 ("i2c: mediatek: disable zero-length transfers
for mt8183"), there is a NULL pointer dereference for all the SoCs
that don't have any quirk. mtk_i2c_functionality is not checking that
the quirks pointer is not NULL before starting to use it.

This commit add a call to i2c_check_quirks which will check whether
the quirks pointer is set, and if so will check if the IP has the
NO_ZERO_LEN quirk.

Fixes: abf4923e97 ("i2c: mediatek: disable zero-length transfers for mt8183")
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Reviewed-by: Cengiz Can <cengiz@kernel.wtf>
Reviewed-by: Hsin-Yi Wang <hsinyi@chromium.org>
Tested-by: Ulrich Hecht <uli@fpond.eu>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

...

This commit is contained in:

Fabien Parent 2019-10-18 19:32:13 +02:00 • committed by Wolfram Sang

parent 1f0d9cbeec

commit 62931ac2f9

1 changed files with 1 additions and 1 deletions

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drivers/i2c/busses/i2c-mt65xx.c

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