Commit af051483 authored Feb 02, 2016 by Xinming Hu Committed by Kalle Valo Feb 07, 2016

mwifiex: process pcie io memory read failure case



It is observed that ioread32 may fail to read pcie register
in certain scenarios, this patch handles these cases.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

parent 6970cd44

drivers/net/wireless/marvell/mwifiex/pcie.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -323,6 +323,8 @@ static int mwifiex_read_reg(struct mwifiex_adapter adapter, int reg, u32 data)
		struct pcie_service_card *card = adapter->card;

		*data = ioread32(card->pci_mmap1 + reg);
		if (*data == 0xffffffff)
		return 0xffffffff;

		return 0;
		}