pinctrl: use kasprintf() in pinmux_request_gpio()

Instead of using a temporary buffer, snprintf() and kstrdup(), just
use kasprintf() that does the same thing in just oneline.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Colin Cross <ccross@google.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index 3d5ac73bd5a7..9301a7a95eff 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -232,14 +232,11 @@ int pinmux_request_gpio(struct pinctrl_dev *pctldev,
                         struct pinctrl_gpio_range *range,
                         unsigned pin, unsigned gpio)
 {
-        char gpiostr[16];
         const char *owner;
         int ret;
 
         /* Conjure some name stating what chip and pin this is taken by */
-        snprintf(gpiostr, 15, "%s:%d", range->name, gpio);
-
-        owner = kstrdup(gpiostr, GFP_KERNEL);
+        owner = kasprintf(GFP_KERNEL, "%s:%d", range->name, gpio);
         if (!owner)
                 return -EINVAL;