[PATCH] xtensa: fix warning comparing pointer to 0

[Jiapeng Chong]

Fix the following coccicheck warning:

./arch/xtensa/kernel/pci.c:79:17-18: WARNING comparing pointer to 0.

Reported-by: Abaci Robot <ab...@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.ch...@linux.alibaba.com>
---
 arch/xtensa/kernel/pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c
index 3f32e27..62c900e 100644
--- a/arch/xtensa/kernel/pci.c
+++ b/arch/xtensa/kernel/pci.c
@@ -76,7 +76,7 @@ int pci_iobar_pfn(struct pci_dev *pdev, int bar, struct 
vm_area_struct *vma)
        struct pci_controller *pci_ctrl = (struct pci_controller*) 
pdev->sysdata;
        resource_size_t ioaddr = pci_resource_start(pdev, bar);
 
-       if (pci_ctrl == 0)
+       if (!pci_ctrl)
                return -EINVAL;         /* should never happen */
 
        /* Convert to an offset within this PCI controller */
-- 
1.8.3.1