pinctrl: don't print unavailable function groups
There is no reason to try to print groups associated to a function if
get_function_groups returns an error. Moreover, it can lead to a NULL
pointer dereference error.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index 77f82b2..e7ae890 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -557,9 +557,12 @@
ret = pmxops->get_function_groups(pctldev, func_selector,
&groups, &num_groups);
- if (ret)
+ if (ret) {
seq_printf(s, "function %s: COULD NOT GET GROUPS\n",
func);
+ func_selector++;
+ continue;
+ }
seq_printf(s, "function: %s, groups = [ ", func);
for (i = 0; i < num_groups; i++)