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igb: Fix a deadlock in igb_sriov_reinit 

When igb_init_interrupt_scheme in igb_sriov_reinit is failed, the lock
acquired by rtnl_lock() is not released, which causes a deadlock.
This patch adds rtnl_unlock() in error handling to fix it.

Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jia-Ju Bai 2015-08-03 11:36:26 +08:00 committed by Jeff Kirsher
parent 5e5d49422d
commit 3eb14ea8d9
1 changed files with 1 additions and 0 deletions
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1
drivers/net/ethernet/intel/igb/igb_main.c
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@ -7413,6 +7413,7 @@ static int igb_resume(struct device *dev)
if (igb_init_interrupt_scheme(adapter, true)) {
dev_err(&pdev->dev, "Unable to allocate memory for queues\n");
rtnl_unlock();
return -ENOMEM;
}