Current hisi_pcie_cfg_read code read the RC configuration space, this has a problem that the output parameter "*val" have not been assigned when size=4, so we fix the bug by "*val = reg_val" when size=4. Signed-off-by: Dongdong Liu <liudongdong3@xxxxxxxxxx> --- drivers/pci/host/pcie-hisi.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/pci/host/pcie-hisi.c b/drivers/pci/host/pcie-hisi.c index 35457ec..da677b1 100644 --- a/drivers/pci/host/pcie-hisi.c +++ b/drivers/pci/host/pcie-hisi.c @@ -61,7 +61,9 @@ static int hisi_pcie_cfg_read(struct pcie_port *pp, int where, int size, *val = *(u8 __force *) walker; else if (size == 2) *val = *(u16 __force *) walker; - else if (size != 4) + else if (size == 4) + *val = reg_val; + else return PCIBIOS_BAD_REGISTER_NUMBER; return PCIBIOS_SUCCESSFUL; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
