Before using the result of env_get("stdin") we must check if it is NULL.
Use attribute __maybe unused instead of dummy assignment.
Signed-off-by: Heinrich Schuchardt <heinrich.schucha...@canonical.com>
---
drivers/input/input.c | 21 ++++++++++++---------
1 file changed, 12 insertions(+), 9 deletions(-)
diff --git a/drivers/input/input.c b/drivers/input/input.c
index a4341e8c7c..2330b21f71 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -666,19 +666,22 @@ int input_init(struct input_config *config, int leds)
int input_stdio_register(struct stdio_dev *dev)
{
- int error;
+ __maybe_unused int error;
error = stdio_register(dev);
#if !defined(CONFIG_SPL_BUILD) || CONFIG_IS_ENABLED(ENV_SUPPORT)
- /* check if this is the standard input device */
- if (!error && strcmp(env_get("stdin"), dev->name) == 0) {
- /* reassign the console */
- if (OVERWRITE_CONSOLE ||
- console_assign(stdin, dev->name))
- return -1;
+ if (!error) {
+ const char *cstdin;
+
+ /* check if this is the standard input device */
+ cstdin = env_get("stdin");
+ if (cstdin && !strcmp(cstdin, dev->name)) {
+ /* reassign the console */
+ if (OVERWRITE_CONSOLE ||
+ console_assign(stdin, dev->name))
+ return -1;
+ }
}
-#else
- error = error;
#endif
return 0;
--
2.40.1
