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

Fix http://bugzilla.kernel.org/show_bug.cgi?id=8343

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/irda/irda_device.c b/net/irda/irda_device.c
index e717801..7b5def1 100644 (file)
--- a/net/irda/irda_device.c
+++ b/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;
 }