From 18eb86362a52f0af933cc0fd5e37027317eb2d1c Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Sun, 27 Aug 2017 08:39:51 +0200 Subject: [PATCH] igb: check memory allocation failure Check memory allocation failures and return -ENOMEM in such cases, as already done for other memory allocations in this function. This avoids NULL pointers dereference. Signed-off-by: Christophe JAILLET Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/igb/igb_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index fd4a46b03cc8..837d9b46a390 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -3162,6 +3162,8 @@ static int igb_sw_init(struct igb_adapter *adapter) /* Setup and initialize a copy of the hw vlan table array */ adapter->shadow_vfta = kcalloc(E1000_VLAN_FILTER_TBL_SIZE, sizeof(u32), GFP_ATOMIC); + if (!adapter->shadow_vfta) + return -ENOMEM; /* This call may decrease the number of queues */ if (igb_init_interrupt_scheme(adapter, true)) { -- 2.39.5