From: Santosh Nayak <santoshprasadnayak@xxxxxxxxx>
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@xxxxxxxxx>
---
drivers/net/wireless/orinoco/main.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/orinoco/main.c b/drivers/net/wireless/orinoco/main.c
index dd6c64a..24a768b 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);
--
1.7.4.4
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