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gpio: convert to idr_alloc() 

Convert to the much saner new idr interface.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Tejun Heo 2013-02-27 17:04:06 -08:00 committed by Linus Torvalds
parent 37b61890d7
commit 62f516b8d6
1 changed files with 3 additions and 8 deletions
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11
drivers/gpio/gpiolib.c
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@ -411,15 +411,10 @@ static int gpio_setup_irq(struct gpio_desc *desc, struct device *dev,
goto err_out;
}
do {
ret = -ENOMEM;
if (idr_pre_get(&dirent_idr, GFP_KERNEL))
ret = idr_get_new_above(&dirent_idr, value_sd,
1, &id);
} while (ret == -EAGAIN);
if (ret)
ret = idr_alloc(&dirent_idr, value_sd, 1, 0, GFP_KERNEL);
if (ret < 0)
goto free_sd;
id = ret;
desc->flags &= GPIO_FLAGS_MASK;
desc->flags |= (unsigned long)id << ID_SHIFT;