Replace kzalloc/kmalloc followed by memcpy with kmemdup to simplify
code and avoid unnecessary zero-initialization before overwriting.
Signed-off-by: Alexandru Hossu <hossu.alexandru@gmail.com>From 3ed44dff9cee65557deb3221402a9f8f9cb9957f Mon Sep 17 00:00:00 2001
From: Alexandru Hossu <hossu.alexandru@gmail.com>
Date: Wed, 4 Mar 2026 12:24:33 +0100
Subject: [PATCH] staging: rtl8723bs: replace kzalloc/kmalloc+memcpy with
kmemdup
Signed-off-by: Alexandru Hossu <hossu.alexandru@gmail.com>
---
drivers/staging/rtl8723bs/hal/sdio_ops.c | 4 +---
drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c | 4 +---
2 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/staging/rtl8723bs/hal/sdio_ops.c b/drivers/staging/rtl8723bs/hal/sdio_ops.c
index c9cb20c61..514c857a9 100644
--- a/drivers/staging/rtl8723bs/hal/sdio_ops.c
+++ b/drivers/staging/rtl8723bs/hal/sdio_ops.c
@@ -583,12 +583,10 @@ s32 sdio_local_write(
)
return sd_cmd52_write(intfhdl, addr, cnt, buf);
- tmpbuf = kmalloc(cnt, GFP_ATOMIC);
+ tmpbuf = kmemdup(buf, cnt, GFP_ATOMIC);
if (!tmpbuf)
return -ENOMEM;
- memcpy(tmpbuf, buf, cnt);
-
err = sd_write(intfhdl, addr, cnt, tmpbuf);
kfree(tmpbuf);
diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
index 7cb0c6f22..2125606f7 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;
--
2.43.0