Subject: [PATCH v2 2/8] ALSA: pcm: use krealloc_array()

From: Bartosz Golaszewski <[email-masked]>
Date: Mon, 2 Nov 2020 16:20:31 +0100

From: Bartosz Golaszewski <[email-masked]>

Use the helper that checks for overflows internally instead of manually
calculating the size of the new array.

Signed-off-by: Bartosz Golaszewski <[email-masked]>
Reviewed-by: Takashi Iwai <[email-masked]>
---
 sound/core/pcm_lib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index d531e1bc2b81..c6f8f9e252e0 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -1129,8 +1129,8 @@ int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, unsigned int cond,
 	if (constrs->rules_num >= constrs->rules_all) {
 		struct snd_pcm_hw_rule *new;
 		unsigned int new_rules = constrs->rules_all + 16;
-		new = krealloc(constrs->rules, new_rules * sizeof(*c),
-			       GFP_KERNEL);
+		new = krealloc_array(constrs->rules, new_rules,
+				     sizeof(*c), GFP_KERNEL);
 		if (!new) {
 			va_end(args);
 			return -ENOMEM;
-- 
2.29.1