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>
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 4828fe7..fff9786 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -411,15 +411,10 @@
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;