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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-13 17:26:46 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-13 17:26:46 -0800 |
| commit | d8a3515e2a9523f8ed56d1f4537d16338bda2bc2 (patch) | |
| tree | d51bd1b4f0b3c13bedde97ba79e014882be634a9 /Documentation/gpio.txt | |
| parent | ecryptfs: fix broken build (diff) | |
| download | linux-dev-d8a3515e2a9523f8ed56d1f4537d16338bda2bc2.tar.xz linux-dev-d8a3515e2a9523f8ed56d1f4537d16338bda2bc2.zip | |
Revert "gpiolib: annotate gpio-intialization with __must_check"
This reverts commit 0fdae42d361bbb431ca0ab0efed5126a94821177, which
wasn't really supposed to go in, and causes lots of annoying warnings.
Quoth Andrew:
"Complete brainfart - I meant to drop that patch ages ago."
Quoth Greg:
"Ick, yeah, that patch isn't ok to go in as-is, all of the callers
need to be fixed up first, which is what I thought we had agreed on..."
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Greg KH <greg@kroah.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/gpio.txt')
| -rw-r--r-- | Documentation/gpio.txt | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/gpio.txt b/Documentation/gpio.txt index a492d92bb098..792faa3c06cf 100644 --- a/Documentation/gpio.txt +++ b/Documentation/gpio.txt @@ -135,7 +135,7 @@ setting up a platform_device using the GPIO, is mark its direction: int gpio_direction_input(unsigned gpio); int gpio_direction_output(unsigned gpio, int value); -The return value is zero for success, else a negative errno. It must +The return value is zero for success, else a negative errno. It should be checked, since the get/set calls don't have error returns and since misconfiguration is possible. You should normally issue these calls from a task context. However, for spinlock-safe GPIOs it's OK to use them |