From: Ziyang Xuan <william.xuanziyang@huawei.com>
Date: Sat, 19 Nov 2022 05:19:00 +0000 (+0800)
Subject: wifi: plfxlc: fix potential memory leak in __lf_x_usb_enable_rx()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=895b3b06efc285c1245242e9638b9ae251dc13ec;p=linux.git

wifi: plfxlc: fix potential memory leak in __lf_x_usb_enable_rx()

urbs does not be freed in exception paths in __lf_x_usb_enable_rx().
That will trigger memory leak. To fix it, add kfree() for urbs within
"error" label. Compile tested only.

Fixes: 68d57a07bfe5 ("wireless: add plfxlc driver for pureLiFi X, XL, XC devices")
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221119051900.1192401-1-william.xuanziyang@huawei.com
---

diff --git a/drivers/net/wireless/purelifi/plfxlc/usb.c b/drivers/net/wireless/purelifi/plfxlc/usb.c
index 39e54b3787d6a..76d0a778636a4 100644
--- a/drivers/net/wireless/purelifi/plfxlc/usb.c
+++ b/drivers/net/wireless/purelifi/plfxlc/usb.c
@@ -247,6 +247,7 @@ error:
 		for (i = 0; i < RX_URBS_COUNT; i++)
 			free_rx_urb(urbs[i]);
 	}
+	kfree(urbs);
 	return r;
 }