mwifiex: don't return zero on failure paths in mwifiex_pcie_init()
If pci_iomap() fails in mwifiex_pcie_init(), it breaks off initialization, deallocates all resources, but returns zero. The patch adds -EIO as return value in this case. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru> Acked-by: NBing Zhao <bzhao@marvell.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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