From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: Amitkumar Karwar <amit.karwar@redpinesignals.com>,
Kalle Valo <kvalo@codeaurora.org>
Cc: linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: [PATCH] rsi_91x_usb: fix uninitialized variable
Date: Thu, 26 Apr 2018 08:13:24 -0500 [thread overview]
Message-ID: <20180426131324.GA982@embeddedor.com> (raw)
There is a potential execution path in which variable ret is returned
without being properly initialized previously.
Fix this by storing the value returned by function
rsi_usb_master_reg_write into _ret_.
Addresses-Coverity-ID: 1468407 ("Uninitialized scalar variable")
Fixes: 16d3bb7b2f37 ("rsi: disable fw watchdog timer during reset")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
drivers/net/wireless/rsi/rsi_91x_usb.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/rsi/rsi_91x_usb.c b/drivers/net/wireless/rsi/rsi_91x_usb.c
index b065438..6ce6b75 100644
--- a/drivers/net/wireless/rsi/rsi_91x_usb.c
+++ b/drivers/net/wireless/rsi/rsi_91x_usb.c
@@ -687,9 +687,10 @@ static int rsi_reset_card(struct rsi_hw *adapter)
*/
msleep(100);
- if (rsi_usb_master_reg_write(adapter, SWBL_REGOUT,
- RSI_FW_WDT_DISABLE_REQ,
- RSI_COMMON_REG_SIZE) < 0) {
+ ret = rsi_usb_master_reg_write(adapter, SWBL_REGOUT,
+ RSI_FW_WDT_DISABLE_REQ,
+ RSI_COMMON_REG_SIZE);
+ if (ret < 0) {
rsi_dbg(ERR_ZONE, "Disabling firmware watchdog timer failed\n");
goto fail;
}
--
2.7.4
next reply other threads:[~2018-04-26 13:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-26 13:13 Gustavo A. R. Silva [this message]
2018-04-30 10:34 ` rsi_91x: fix uninitialized variable Kalle Valo
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