[PATCH] drm/komeda: Clean warnings: candidate for 'gnu_printfâ format attribute

[james qian wang (Arm Technology China)]

komeda/komeda_event.c: In function âkomeda_sprintfâ:
komeda/komeda_event.c:31:2: warning: function âkomeda_sprintfâ might be a candidate for âgnu_printfâ format attribute [-Wsuggest-attribute=format]
  num = vsnprintf(str->str + str->len, free_sz, fmt, args);

v2: Update the comment msg.

Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@xxxxxxx>
---
 drivers/gpu/drm/arm/display/komeda/komeda_event.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_event.c b/drivers/gpu/drm/arm/display/komeda/komeda_event.c
index bf269683f811..977c38d516da 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_event.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_event.c
@@ -17,6 +17,7 @@ struct komeda_str {
 
 /* return 0 on success,  < 0 on no space.
  */
+__printf(2, 3)
 static int komeda_sprintf(struct komeda_str *str, const char *fmt, ...)
 {
 	va_list args;
-- 
2.20.1