pinctrl: fix buffer size for pinctrl_generic_set_state_prefix()
This buffer has the concatenated prefix and name written into it, so it
must be large enough to cover both strings plus the terminating NUL.
Fixes: 92c4a95ec7 ("pinctrl: Add new function pinctrl_generic_set_state_prefix()")
Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/pinctrl/pinctrl-generic.c b/drivers/pinctrl/pinctrl-generic.c
index ec21d4f..8909b57 100644
--- a/drivers/pinctrl/pinctrl-generic.c
+++ b/drivers/pinctrl/pinctrl-generic.c
@@ -237,7 +237,7 @@
static const char *alloc_name_with_prefix(const char *name, const char *prefix)
{
if (prefix) {
- char *name_with_prefix = malloc(strlen(prefix) + sizeof("pins"));
+ char *name_with_prefix = malloc(strlen(prefix) + strlen(name) + 1);
if (name_with_prefix)
sprintf(name_with_prefix, "%s%s", prefix, name);
return name_with_prefix;