patch "staging: r8188eu: fix a memory leak in rtw_wx_read32()" added to staging-linus

This is a note to let you know that I've just added the patch titled

staging: r8188eu: fix a memory leak in rtw_wx_read32()

to my staging git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From be4ea8f383551b9dae11b8dfff1f38b3b5436e9a Mon Sep 17 00:00:00 2001
From: Dan Carpenter <[email protected]>
Date: Tue, 9 Nov 2021 14:49:36 +0300
Subject: staging: r8188eu: fix a memory leak in rtw_wx_read32()

Free "ptmp" before returning -EINVAL.

---
 drivers/staging/r8188eu/os_dep/ioctl_linux.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

index 52d42e576443..9404355726d0 100644
@@ -1980,6 +1980,7 @@ static int rtw_wx_read32(struct net_device *dev,
 	u32 data32;
 	u32 bytes;
 	u8 *ptmp;
+	int ret;
 
 	padapter = (struct adapter *)rtw_netdev_priv(dev);
 	p = &wrqu->data;

@@ -2007,12 +2008,17 @@ static int rtw_wx_read32(struct net_device *dev,
 		break;
 	default:
 		DBG_88E(KERN_INFO "%s: usage> read [bytes],[address(hex)]\n", __func__);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err_free_ptmp;
 	}
 	DBG_88E(KERN_INFO "%s: addr = 0x%08X data =%s\n", __func__, addr, extra);
 
 	kfree(ptmp);
 	return 0;
+
+err_free_ptmp:
+	kfree(ptmp);
+	return ret;
 }
 
 static int rtw_wx_write32(struct net_device *dev,

2.33.1