ALSA: oss: remove useless NULL check before kfree

Tis patch try to remove useless NULL check before kfree

Signed-off-by: Bernard Zhao <bernard@vivo.com>
Link: https://lore.kernel.org/r/20211206014135.320720-1-bernard@vivo.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/core/info_oss.c b/sound/core/info_oss.c
index 1ba887c7954e828205cbb65cf1179c12ce2ca7a2..ebc714b2f46b3faca2db1f0f8b9fee5fd8ba0520 100644 (file)
--- a/sound/core/info_oss.c
+++ b/sound/core/info_oss.c
@@ -32,10 +32,8 @@ int snd_oss_info_register(int dev, int num, char *string)
        mutex_lock(&strings);
        if (string == NULL) {
                x = snd_sndstat_strings[num][dev];
-               if (x) {
-                       kfree(x);
-                       x = NULL;
-               }
+               kfree(x);
+               x = NULL;
        } else {
                x = kstrdup(string, GFP_KERNEL);
                if (x == NULL) {