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PCI: pciehp: Remove unnecessary guard

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In pcie_isr(), we return early if no status bits other than
PCI_EXP_SLTSTA_CC are set.  This was introduced by dbd79aed1aea ("pciehp:
fix NULL dereference in interrupt handler"), but it is no longer necessary
because all the subsequent pcie_isr() code is already predicated on a
status bit being set.

Remove the unnecessary test for ~PCI_EXP_SLTSTA_CC.  No functional change
intended.

Tested-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Bjorn Helgaas 2016-09-08 15:15:24 -05:00
parent 69bd3c5b28
commit 4947793916
1 changed files with 0 additions and 3 deletions
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3
drivers/pci/hotplug/pciehp_hpc.c
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@ -590,9 +590,6 @@ static irqreturn_t pciehp_isr(int irq, void *dev_id)
}
}
if (!(events & ~PCI_EXP_SLTSTA_CC))
return IRQ_HANDLED;
/* Check Attention Button Pressed */
if (events & PCI_EXP_SLTSTA_ABP) {
ctrl_info(ctrl, "Button pressed on Slot(%s)\n",