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| author | Phil Reid <preid@electromag.com.au> | 2016-11-08 14:00:45 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-26 09:56:59 +0100 |
| commit | a9a0027757f8c317f1d7334c095bde96b4a0f84c (patch) | |
| tree | 03479227ba3c109ffe65c830e2049499987100ec /net/netlink/Makefile | |
| parent | 88fce76cf59055ddf97667001dbd26577b8760e0 (diff) | |
| download | lwn-a9a0027757f8c317f1d7334c095bde96b4a0f84c.tar.gz lwn-a9a0027757f8c317f1d7334c095bde96b4a0f84c.zip | |
gpio: pca953x: Fix corruption of other gpios in set_multiple.
commit 53f8d322234649b4d6f1515b20c127a577efd164 upstream.
gpiod_set_array_value_complex does not clear the bits field.
Therefore when the drivers set_multiple funciton is called bits outside
the mask are undefined and can be either set or not. So bank_val needs
to be masked with bank_mask before or with the reg_val cache.
Fixes: b4818afeacbd ("gpio: pca953x: Add set_multiple to allow multiple")
Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/netlink/Makefile')
0 files changed, 0 insertions, 0 deletions