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| author | Bartosz Golaszewski <[email protected]> | 2020-04-15 08:23:59 +0000 |
|---|---|---|
| committer | Bartosz Golaszewski <[email protected]> | 2020-04-23 15:55:27 +0000 |
| commit | 4e1541593017d76cfa04bd666de8e4dbcfe3105d (patch) | |
| tree | f57ab3f0ec6a8e32977145326d10243003cdb202 /drivers/pci/controller/pci-host-common.c | |
| parent | gpio: pca953x: Fix pca953x_gpio_set_config (diff) | |
| download | kernel-4e1541593017d76cfa04bd666de8e4dbcfe3105d.tar.gz kernel-4e1541593017d76cfa04bd666de8e4dbcfe3105d.zip | |
gpiolib: improve the robustness of watch/unwatch ioctl()
This makes the new ioctl() a bit more robust - we now check if a line
is already being watched and return -EBUSY if the user-space tries to
start watching it again. Same for unwatch - return -EBUSY if user-space
tries to unwatch a line that's not being watched.
Fixes: 51c1064e82e7 ("gpiolib: add new ioctl() for monitoring changes in line info")
Signed-off-by: Bartosz Golaszewski <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Diffstat (limited to 'drivers/pci/controller/pci-host-common.c')
0 files changed, 0 insertions, 0 deletions