From: Santosh Nayak <santoshprasadnayak@gmail.com>
Date: Thu, 22 Mar 2012 07:12:41 +0000 (+0530)
Subject: net: orinoco: add error handling for failed kmalloc().
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e90c7e712980bf794f88f749e2a1270e4a4a116e;p=linux-beck.git

net: orinoco: add error handling for failed kmalloc().

With flag 'GFP_ATOMIC', probability of allocation failure is more.
Add error handling after kmalloc() call to avoid null dereference.

Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/orinoco/main.c b/drivers/net/wireless/orinoco/main.c
index dd6c64ac406e..88e3ad2d1db8 100644
--- a/drivers/net/wireless/orinoco/main.c
+++ b/drivers/net/wireless/orinoco/main.c
@@ -1336,6 +1336,10 @@ static void qbuf_scan(struct orinoco_private *priv, void *buf,
 	unsigned long flags;
 
 	sd = kmalloc(sizeof(*sd), GFP_ATOMIC);
+	if (!sd) {
+		printk(KERN_ERR "%s: failed to alloc memory\n", __func__);
+		return;
+	}
 	sd->buf = buf;
 	sd->len = len;
 	sd->type = type;
@@ -1353,6 +1357,10 @@ static void qabort_scan(struct orinoco_private *priv)
 	unsigned long flags;
 
 	sd = kmalloc(sizeof(*sd), GFP_ATOMIC);
+	if (!sd) {
+		printk(KERN_ERR "%s: failed to alloc memory\n", __func__);
+		return;
+	}
 	sd->len = -1; /* Abort */
 
 	spin_lock_irqsave(&priv->scan_lock, flags);