[PATCH] ide: Use NULL to compare with pointer-typed value rather than 0

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We should use NULL to compare with pointer-typed value rather than
0. The issue is detected with the help of Coccinelle.

Signed-off-by: zhong jiang <zhongjiang@xxxxxxxxxx>
---
 drivers/ide/pmac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ide/pmac.c b/drivers/ide/pmac.c
index c5b902b..673734b 100644
--- a/drivers/ide/pmac.c
+++ b/drivers/ide/pmac.c
@@ -1682,7 +1682,7 @@ static int pmac_ide_init_dma(ide_hwif_t *hwif, const struct ide_port_info *d)
 	/* We won't need pci_dev if we switch to generic consistent
 	 * DMA routines ...
 	 */
-	if (dev == NULL || pmif->dma_regs == 0)
+	if (dev == NULL || pmif->dma_regs == NULL)
 		return -ENODEV;
 	/*
 	 * Allocate space for the DBDMA commands.
-- 
1.7.12.4




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