[PATCH] bfin: check if an empty array pointer is passed to pinmux request API
From: Sonic Zhang <hidden>
Date: 2015-02-05 05:36:49
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Sonic Zhang <redacted> to avoid possible indigestion Signed-off-by: Sonic Zhang <redacted> --- 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