From: Bolarinwa Olayemi Saheed <[email protected]> On failure, pcie_capabiility_read_*() will set rtsta to 0 and not ~0. This bug fix checks for the proper value.
Signed-off-by: Bolarinwa Olayemi Saheed <[email protected]> --- drivers/pci/pcie/pme.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/pcie/pme.c b/drivers/pci/pcie/pme.c index 6a32970bb731..1d1d06f06335 100644 --- a/drivers/pci/pcie/pme.c +++ b/drivers/pci/pcie/pme.c @@ -224,7 +224,7 @@ static void pcie_pme_work_fn(struct work_struct *work) break; pcie_capability_read_dword(port, PCI_EXP_RTSTA, &rtsta); - if (rtsta == (u32) ~0) + if (rtsta == (u32)0) break; if (rtsta & PCI_EXP_RTSTA_PME) { @@ -274,7 +274,7 @@ static irqreturn_t pcie_pme_irq(int irq, void *context) spin_lock_irqsave(&data->lock, flags); pcie_capability_read_dword(port, PCI_EXP_RTSTA, &rtsta); - if (rtsta == (u32) ~0 || !(rtsta & PCI_EXP_RTSTA_PME)) { + if (rtsta == (u32)0 || !(rtsta & PCI_EXP_RTSTA_PME)) { spin_unlock_irqrestore(&data->lock, flags); return IRQ_NONE; } -- 2.18.2
