If devm_platform_ioremap_resource() fails, it never return
NULL pointer, replace the check with IS_ERR().
Fixes: 57bf0f5a162d ("ARM: pxa: use pdev resource for palmld mmio")
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Reviewed-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
Acked-by: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx>
---
The previous patch link:
https://lore.kernel.org/lkml/15e09c18-792b-931c-11c7-5ef284490eba@xxxxxxxxxx/T/#t
---
drivers/ata/pata_palmld.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/ata/pata_palmld.c b/drivers/ata/pata_palmld.c
index 400e65190904..51caa2a427dd 100644
--- a/drivers/ata/pata_palmld.c
+++ b/drivers/ata/pata_palmld.c
@@ -63,8 +63,8 @@ static int palmld_pata_probe(struct platform_device *pdev)
/* remap drive's physical memory address */
mem = devm_platform_ioremap_resource(pdev, 0);
- if (!mem)
- return -ENOMEM;
+ if (IS_ERR(mem))
+ return PTR_ERR(mem);
/* request and activate power and reset GPIOs */
lda->power = devm_gpiod_get(dev, "power", GPIOD_OUT_HIGH);
--
2.25.1
