[IRDA] irda_device_dongle_init: fix kzalloc(GFP_KERNEL) in spinlock

Fix http://bugzilla.kernel.org/show_bug.cgi?id=8343Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NSamuel Ortiz <samuel@sortiz.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/irda/irda_device.c

@@ -375,7 +375,7 @@ EXPORT_SYMBOL(alloc_irdadev);
 dongle_t *irda_device_dongle_init(struct net_device *dev, int type)
 {
 	struct dongle_reg *reg;
-	dongle_t *dongle = NULL;
+	dongle_t *dongle = kzalloc(sizeof(dongle_t), GFP_KERNEL);
 
 	might_sleep();
 
@@ -397,19 +397,14 @@ dongle_t *irda_device_dongle_init(struct net_device *dev, int type)
 	if (!reg || !try_module_get(reg->owner) ) {
 		IRDA_ERROR("IrDA: Unable to find requested dongle type %x\n",
 			   type);
-		goto out;
+		kfree(dongle);
+		dongle = NULL;
+	}
+	if (dongle) {
+		/* Bind the registration info to this particular instance */
+		dongle->issue = reg;
+		dongle->dev = dev;
 	}
-
-	/* Allocate dongle info for this instance */
-	dongle = kzalloc(sizeof(dongle_t), GFP_KERNEL);
-	if (!dongle)
-		goto out;
-
-	/* Bind the registration info to this particular instance */
-	dongle->issue = reg;
-	dongle->dev = dev;
-
- out:
 	spin_unlock(&dongles->hb_spinlock);
 	return dongle;
 }