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Wed, 04 Mar 2026 05:59:15 -0800 (PST) From: Alexandru Hossu To: gregkh@linuxfoundation.org Cc: linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Alexandru Hossu Subject: [PATCH v4] staging: rtl8723bs: replace alloc+memcpy with kmemdup Date: Wed, 4 Mar 2026 14:59:14 +0100 Message-ID: <20260304135914.38286-1-hossu.alexandru@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260304130706.37347-1-hossu.alexandru@gmail.com> References: <20260304130706.37347-1-hossu.alexandru@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Replace open-coded alloc+memcpy patterns with kmemdup(). This simplifies the code and avoids manual size/copy handling. Signed-off-by: Alexandru Hossu v4: - Drop unrelated DT binding changes from earlier attempts. - Include both rtl8723bs changes in one staging-only patch. - Wrap long line reported by checkpatch. --- drivers/staging/rtl8723bs/hal/sdio_ops.c | 3 +-- drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/staging/rtl8723bs/hal/sdio_ops.c b/drivers/staging/rtl= 8723bs/hal/sdio_ops.c index c9cb20c61..6e03d3d8a 100644 --- a/drivers/staging/rtl8723bs/hal/sdio_ops.c +++ b/drivers/staging/rtl8723bs/hal/sdio_ops.c @@ -583,11 +583,10 @@ s32 sdio_local_write( ) return sd_cmd52_write(intfhdl, addr, cnt, buf); =20 - tmpbuf =3D kmalloc(cnt, GFP_ATOMIC); + tmpbuf =3D kmemdup(buf, cnt, GFP_ATOMIC); if (!tmpbuf) return -ENOMEM; =20 - memcpy(tmpbuf, buf, cnt); =20 err =3D sd_write(intfhdl, addr, cnt, tmpbuf); =20 diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c b/drivers/st= aging/rtl8723bs/os_dep/ioctl_cfg80211.c index 7cb0c6f22..0ae7b6389 100644 --- a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c +++ b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c @@ -1430,13 +1430,12 @@ static int rtw_cfg80211_set_wpa_ie(struct adapter *= padapter, u8 *pie, size_t iel goto exit; } =20 - buf =3D kzalloc(ielen, GFP_KERNEL); + buf =3D kmemdup(pie, ielen, GFP_KERNEL); if (!buf) { ret =3D -ENOMEM; goto exit; } =20 - memcpy(buf, pie, ielen); =20 if (ielen < RSN_HEADER_LEN) { ret =3D -1; --=20 2.43.0