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author | Linus Walleij <linus.walleij@linaro.org> | 2013-08-30 09:41:45 +0200 |
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committer | Linus Walleij <linus.walleij@linaro.org> | 2013-09-03 14:08:28 +0200 |
commit | be1a4b13089b1e18da83a549d49163ccad3c19ba (patch) | |
tree | 321f0e432ef3df8f7ea17a664087e58d3f24a7c6 /drivers/spi/spi-fsl-espi.c | |
parent | 6c17aa0138a6c55364936bbaa35846e09a4db53b (diff) | |
download | linux-be1a4b13089b1e18da83a549d49163ccad3c19ba.tar.gz |
gpio: improve error path in gpiolib
At several places the gpiolib will proceed to handle a GPIO
descriptor even if it's ->chip member is NULL and no gpiochip
is associated.
Fix this by checking that both the descriptor cookie *and*
the chip pointer are valid.
Also bail out earlier with more specific diagnostic messages
on missing operations for setting as input/output or debounce.
ChangeLog v1->v2:
- Also return -EIO on gpiod_set_debounce() with missing
operations in the vtable
- Fix indentations.
Suggested-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Frank Rowand <frank.rowand@sonymobile.com>
Cc: Tim Bird <tim.bird@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/spi/spi-fsl-espi.c')
0 files changed, 0 insertions, 0 deletions