ar71xx: simplify patch 613 and add missing error handling

[openwrt.git] / target / linux / ar71xx / patches-4.1 / 613-MIPS-ath79-add-ath79_wmac_setup_ext_lna_gpio-helper.patch

diff --git a/target/linux/ar71xx/patches-4.1/613-MIPS-ath79-add-ath79_wmac_setup_ext_lna_gpio-helper.patch b/target/linux/ar71xx/patches-4.1/613-MIPS-ath79-add-ath79_wmac_setup_ext_lna_gpio-helper.patch
index a832bf8..e8bbe44 100644 (file)
--- a/target/linux/ar71xx/patches-4.1/613-MIPS-ath79-add-ath79_wmac_setup_ext_lna_gpio-helper.patch
+++ b/target/linux/ar71xx/patches-4.1/613-MIPS-ath79-add-ath79_wmac_setup_ext_lna_gpio-helper.patch
@@ -18,12 +18,12 @@
  
 +static int ath79_request_ext_lna_gpio(unsigned chain, int gpio)
 +{
-+      char buf[32];
 +      char *label;
 +      int err;
 +
-+      scnprintf(buf, sizeof(buf), "external LNA%u", chain);
-+      label = kstrdup(buf, GFP_KERNEL);
++      label = kasprintf(GFP_KERNEL, "external LNA%u", chain);
++      if (!label)
++              return -ENOMEM;
 +
 +      err = gpio_request_one(gpio, GPIOF_DIR_OUT | GPIOF_INIT_LOW, label);
 +      if (err) {