[PATCH 16/27] Staging: batman-adv: Don't allocate icmp packet with GFP_KERNEL
Greg Kroah-Hartman
gregkh at suse.de
Fri Jun 4 20:45:33 UTC 2010
From: Sven Eckelmann <sven.eckelmann at gmx.de>
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 at gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh at suse.de>
---
drivers/staging/batman-adv/device.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/staging/batman-adv/device.c b/drivers/staging/batman-adv/device.c
index ad82ec4..7eb6559 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;
--
1.7.1
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