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Commit a4f63634 authored by Betty Dall's avatar Betty Dall Committed by David S. Miller
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atl1c: Check return from pci_find_ext_capability() in atl1c_reset_pcie() 



The function atl1c_reset_pcie() does not check the return from
pci_find_ext_cabability() where it is getting the postion of the
PCI_EXT_CAP_ID_ERR. It is possible for the return to be 0.

Signed-off-by: default avatarBetty Dall <betty.dall@hp.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 24f5b855

drivers/net/ethernet/atheros/atl1c/atl1c_main.c

+5 −3
Original line number Diff line number Diff line
@@ -145,9 +145,11 @@ static void atl1c_reset_pcie(struct atl1c_hw *hw, u32 flag) 
	 * Mask some pcie error bits

	 */

	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR);

	if (pos) {

		pci_read_config_dword(pdev, pos + PCI_ERR_UNCOR_SEVER, &data);

		data &= ~(PCI_ERR_UNC_DLP | PCI_ERR_UNC_FCP);

		pci_write_config_dword(pdev, pos + PCI_ERR_UNCOR_SEVER, data);

	}

	/* clear error status */

	pcie_capability_write_word(pdev, PCI_EXP_DEVSTA,

			PCI_EXP_DEVSTA_NFED |