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>

diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index 3d5ac73..9301a7a 100644 (file)
--- 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;