Staging: batman-adv: Don't allocate icmp packet with GFP_KERNEL

A new buffer for a packet is created when a icmp packet is received.
This happens in a context with disabled irq. Thus we are not allowed to
sleep or call function which might sleep. kmalloc must be called with
GFP_ATOMIC instead of GFP_KERNEL to ensure that it does not sleep.

Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/staging/batman-adv/device.c b/drivers/staging/batman-adv/device.c
index ad82ec4a4856..7eb6559e0315 100644
--- a/drivers/staging/batman-adv/device.c
+++ b/drivers/staging/batman-adv/device.c
@@ -309,7 +309,7 @@ void bat_device_add_packet(struct device_client *device_client,
         struct device_packet *device_packet;
         unsigned long flags;
 
-        device_packet = kmalloc(sizeof(struct device_packet), GFP_KERNEL);
+        device_packet = kmalloc(sizeof(struct device_packet), GFP_ATOMIC);
 
         if (!device_packet)
                 return;