commit a0e5facedb4a1c7892a6f6f7a749eaf9b23fbbe1
author Chaehyun Lim <chaehyun.lim@gmail.com> Thu Sep 17 16:48:45 2015 +0900
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Fri Sep 18 19:46:41 2015 -0700
tree dd9e0f2877b174c58f1970793f33396a0945eb9a
parent fed16f2c912fbd1e8e866738e2a8fcd5d9c36c81

staging: wilc1000: linux_wlan_spi.c: fix kzalloc error check

This patch fixes error check of kzalloc.
If kzalloc is failed, return type is used as -ENOMEM.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/linux_wlan_spi.c

diff --git a/drivers/staging/wilc1000/linux_wlan_spi.c b/drivers/staging/wilc1000/linux_wlan_spi.c
index 3e24256..51bbd96 100644
--- a/drivers/staging/wilc1000/linux_wlan_spi.c
+++ b/drivers/staging/wilc1000/linux_wlan_spi.c
@@ -125,10 +125,8 @@
 		int remainder = len % TXRX_PHASE_SIZE;
 
 		char *r_buffer = kzalloc(TXRX_PHASE_SIZE, GFP_KERNEL);
-
-		if (!r_buffer) {
-			PRINT_ER("Failed to allocate memory for r_buffer\n");
-		}
+		if (!r_buffer)
+			return -ENOMEM;
 
 		if (blk) {
 			while (i < blk)	{
@@ -208,10 +206,9 @@
 			.delay_usecs = 0,
 		};
 		char *r_buffer = kzalloc(len, GFP_KERNEL);
+		if (!r_buffer)
+			return -ENOMEM;
 
-		if (!r_buffer) {
-			PRINT_ER("Failed to allocate memory for r_buffer\n");
-		}
 		tr.rx_buf = r_buffer;
 		PRINT_D(BUS_DBG, "Request writing %d bytes\n", len);
 
@@ -257,10 +254,8 @@
 		int remainder = rlen % TXRX_PHASE_SIZE;
 
 		char *t_buffer = kzalloc(TXRX_PHASE_SIZE, GFP_KERNEL);
-
-		if (!t_buffer) {
-			PRINT_ER("Failed to allocate memory for t_buffer\n");
-		}
+		if (!t_buffer)
+			return -ENOMEM;
 
 		if (blk) {
 			while (i < blk)	{
@@ -337,10 +332,9 @@
 
 		};
 		char *t_buffer = kzalloc(rlen, GFP_KERNEL);
+		if (!t_buffer)
+			return -ENOMEM;
 
-		if (!t_buffer) {
-			PRINT_ER("Failed to allocate memory for t_buffer\n");
-		}
 		tr.tx_buf = t_buffer;
 
 		memset(&msg, 0, sizeof(msg));