From f170d44bc4ec2feae5f6206980e7ae7fbf0432a0 Mon Sep 17 00:00:00 2001
From: Denis Efremov <efremov@linux.com>
Date: Wed, 2 Oct 2019 20:18:11 +0300
Subject: [PATCH] rsi: fix potential null dereference in rsi_probe()
Git-commit: f170d44bc4ec2feae5f6206980e7ae7fbf0432a0
Patch-mainline: v5.5-rc1
References: git-fixes
The id pointer can be NULL in rsi_probe(). It is checked everywhere except
for the else branch in the idProduct condition. The patch adds NULL check
before the id dereference in the rsi_dbg() call.
Fixes: 54fdb318c111 ("rsi: add new device model for 9116")
Cc: Amitkumar Karwar <amitkarwar@gmail.com>
Cc: Siva Rebbagondla <siva8118@gmail.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/rsi/rsi_91x_usb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/rsi/rsi_91x_usb.c b/drivers/net/wireless/rsi/rsi_91x_usb.c
index 760eaffeebd6..23a1d00b5f38 100644
--- a/drivers/net/wireless/rsi/rsi_91x_usb.c
+++ b/drivers/net/wireless/rsi/rsi_91x_usb.c
@@ -793,7 +793,7 @@ static int rsi_probe(struct usb_interface *pfunction,
adapter->device_model = RSI_DEV_9116;
} else {
rsi_dbg(ERR_ZONE, "%s: Unsupported RSI device id 0x%x\n",
- __func__, id->idProduct);
+ __func__, id ? id->idProduct : 0x0);
goto err1;
}
--
2.16.4