From: William Dean <williamsukatube@gmail.com>
The function devm_ioremap() in docg3_probe() can fail, so
its return value should be checked.
Fixes: 82402aeb8c81e ("mtd: docg3: Use devm_*() functions")
Reported-by: Hacash Robot <hacashRobot@santino.com>
Signed-off-by: William Dean <williamsukatube@gmail.com>
---
drivers/mtd/devices/docg3.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c
index 5b0ae5ddad74..27c08f22dec8 100644
--- a/drivers/mtd/devices/docg3.c
+++ b/drivers/mtd/devices/docg3.c
@@ -1974,9 +1974,14 @@ static int __init docg3_probe(struct platform_device *pdev)
dev_err(dev, "No I/O memory resource defined\n");
return ret;
}
- base = devm_ioremap(dev, ress->start, DOC_IOSPACE_SIZE);
ret = -ENOMEM;
+ base = devm_ioremap(dev, ress->start, DOC_IOSPACE_SIZE);
+ if (!base) {
+ dev_err(dev, "devm_ioremap dev failed\n");
+ return ret;
+ }
+
cascade = devm_kcalloc(dev, DOC_MAX_NBFLOORS, sizeof(*cascade),
GFP_KERNEL);
if (!cascade)
--
2.25.1