[PATCH v3] staging: rtl8723bs: replace kzalloc/memcpy with kmemdup

[Lin YuChen <starpt.official@gmail.com>]

Replace the open-coded kzalloc and memcpy combination with kmemdup()
to make the code more concise and idiomatic.

Signed-off-by: Lin YuChen <starpt.official@gmail.com>
---
v3:
 - Revert whitespace change to keep the patch atomic as requested by Greg.
v2:
 - Use real name in Signed-off-by line as requested by Ethan Tidmore.
 - Fix a minor whitespace issue in the error return path.

diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
index 7cb0c6f22bf3..2125606f7775 100644
--- a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
+++ b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
@@ -1430,14 +1430,12 @@ static int rtw_cfg80211_set_wpa_ie(struct adapter *padapter, u8 *pie, size_t iel
 		goto exit;
 	}
 
-	buf = kzalloc(ielen, GFP_KERNEL);
+	buf = kmemdup(pie, ielen, GFP_KERNEL);
 	if (!buf) {
 		ret =  -ENOMEM;
 		goto exit;
 	}
 
-	memcpy(buf, pie, ielen);
-
 	if (ielen < RSN_HEADER_LEN) {
 		ret  = -1;
 		goto exit;
-- 
2.34.1