From: Sonic Zhang <sonic.zhang@xxxxxxxxxx>
to avoid possible indigestion
Signed-off-by: Sonic Zhang <sonic.zhang@xxxxxxxxxx>
---
arch/blackfin/kernel/bfin_gpio.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index a017359..153841f 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -730,6 +730,8 @@ int peripheral_request_list(const unsigned short per[], const char *label)
u16 cnt;
int ret;
+ if (per == NULL)
+ return -ENODEV;
for (cnt = 0; per[cnt] != 0; cnt++) {
ret = peripheral_request(per[cnt], label);
@@ -778,6 +780,8 @@ EXPORT_SYMBOL(peripheral_free);
void peripheral_free_list(const unsigned short per[])
{
u16 cnt;
+ if (per == NULL)
+ return;
for (cnt = 0; per[cnt] != 0; cnt++)
peripheral_free(per[cnt]);
}
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-input" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
