From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Mon, 27 Aug 2018 15:35:52 +0000 (+0300)
Subject: extcon: Switch to use kasprintf() instead of open coded
X-Git-Tag: v4.20-rc1~107^2~68^2~5
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=69f75a4f8c7b56a5cb050255167cf77a6f4c2fe1;p=linux.git

extcon: Switch to use kasprintf() instead of open coded

Switch to use kasprintf() instead of open coded variant.
No functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---

diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index c21650a92689..5ab0498be652 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -1123,7 +1123,6 @@ int extcon_dev_register(struct extcon_dev *edev)
 			(unsigned long)atomic_inc_return(&edev_no));
 
 	if (edev->max_supported) {
-		char buf[10];
 		char *str;
 		struct extcon_cable *cable;
 
@@ -1137,9 +1136,7 @@ int extcon_dev_register(struct extcon_dev *edev)
 		for (index = 0; index < edev->max_supported; index++) {
 			cable = &edev->cables[index];
 
-			snprintf(buf, 10, "cable.%d", index);
-			str = kzalloc(strlen(buf) + 1,
-				      GFP_KERNEL);
+			str = kasprintf(GFP_KERNEL, "cable.%d", index);
 			if (!str) {
 				for (index--; index >= 0; index--) {
 					cable = &edev->cables[index];
@@ -1149,7 +1146,6 @@ int extcon_dev_register(struct extcon_dev *edev)
 
 				goto err_alloc_cables;
 			}
-			strcpy(str, buf);
 
 			cable->edev = edev;
 			cable->cable_index = index;
@@ -1172,7 +1168,6 @@ int extcon_dev_register(struct extcon_dev *edev)
 	}
 
 	if (edev->max_supported && edev->mutually_exclusive) {
-		char buf[80];
 		char *name;
 
 		/* Count the size of mutually_exclusive array */
@@ -1197,9 +1192,8 @@ int extcon_dev_register(struct extcon_dev *edev)
 		}
 
 		for (index = 0; edev->mutually_exclusive[index]; index++) {
-			sprintf(buf, "0x%x", edev->mutually_exclusive[index]);
-			name = kzalloc(strlen(buf) + 1,
-				       GFP_KERNEL);
+			name = kasprintf(GFP_KERNEL, "0x%x",
+					 edev->mutually_exclusive[index]);
 			if (!name) {
 				for (index--; index >= 0; index--) {
 					kfree(edev->d_attrs_muex[index].attr.
@@ -1210,7 +1204,6 @@ int extcon_dev_register(struct extcon_dev *edev)
 				ret = -ENOMEM;
 				goto err_muex;
 			}
-			strcpy(name, buf);
 			sysfs_attr_init(&edev->d_attrs_muex[index].attr);
 			edev->d_attrs_muex[index].attr.name = name;
 			edev->d_attrs_muex[index].attr.mode = 0000;