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igb: check memory allocation failure

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[ Upstream commit 18eb86362a ]

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 <christophe.jaillet@wanadoo.fr>
Tested-by: Aaron Brown <aaron.f.brown@intel.com
Acked-by: PJ Waskiewicz <peter.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christophe JAILLET
2017-08-27 08:39:51 +02:00
committed by Greg Kroah-Hartman
parent 1e91b0d64e
commit cffbf0ffc4
1 changed files with 2 additions and 0 deletions
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2
drivers/net/ethernet/intel/igb/igb_main.c
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@@ -3005,6 +3005,8 @@ 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)) {