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 --- This patch is created for maint and should be applied using `git am`. Following patches should be applied before: * batman-adv: Move device for icmp injection to debugfs * batman-adv: Move tables from sysfs to debugfs * batman-adv: Call unregister_netdev on failures to get rtnl lock * batman-adv: Don't call free_netdev twice

icmp_socket.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/icmp_socket.c b/icmp_socket.c index eba8aa2..d74e2d6 100644 --- a/icmp_socket.c +++ b/icmp_socket.c @@ -284,7 +284,7 @@ static void bat_socket_add_packet(struct socket_client *socket_client, struct socket_packet *socket_packet; unsigned long flags;

- socket_packet = kmalloc(sizeof(struct socket_packet), GFP_KERNEL); + socket_packet = kmalloc(sizeof(struct socket_packet), GFP_ATOMIC);

if (!socket_packet) return;