When ioremap_nocache fails, the lack of error-handling code may
cause unexpected results.
This patch adds error-handling code after calling ioremap_nocache.
Signed-off-by: Zhouyang Jia <jiazhouyan...@gmail.com>
---
drivers/mtd/maps/gpio-addr-flash.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mtd/maps/gpio-addr-flash.c
b/drivers/mtd/maps/gpio-addr-flash.c
index 385305e..7fbba02 100644
--- a/drivers/mtd/maps/gpio-addr-flash.c
+++ b/drivers/mtd/maps/gpio-addr-flash.c
@@ -242,6 +242,9 @@ static int gpio_flash_probe(struct platform_device *pdev)
state->map.phys = NO_XIP;
state->map.map_priv_1 = (unsigned long)state;
+ if (!state->map.virt)
+ return -ENOMEM;
+
platform_set_drvdata(pdev, state);
i = 0;
--
2.7.4
