A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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gpio_free might sleep, generic part

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According to the documentation gpio_free should only be called from task
context only.  To make this more explicit add a might sleep to all
implementations.

This is the generic part which changes gpiolib and the fallback
implementation only.

Signed-off-by: Uwe Kleine-König <[email protected]>
Cc: David Brownell <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Uwe Kleine-König 2008-10-15 22:03:12 -07:00 • committed by Linus Torvalds
commit 3d599d1ca5
2 changed files with 5 additions and 0 deletions
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2
drivers/gpio/gpiolib.c
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@ -792,6 +792,8 @@ void gpio_free(unsigned gpio)
unsigned long flags;
struct gpio_desc *desc;
might_sleep();
if (!gpio_is_valid(gpio)) {
WARN_ON(extra_checks);
return;