From bb5369edbab8363a8a9a0c9ba59cb85020accb68 Mon Sep 17 00:00:00 2001
From: Rebecca Mckeever <remckee0@gmail.com>
Date: Sat, 16 Apr 2022 05:24:34 -0500
Subject: [PATCH] staging: rtl8192u: compare strcmp result to zero
Add " == 0" to the condition in both else if branches to address a
possible bug. strcmp returns 0 when its arguments are equal, which
evaluates to false, often leading to errors when used in if statements.
Currently, the statement in the first else if branch does not execute
when its arguments are equal, but it does execute when crypt->ops->name
equals any string other than "WEP" or "TKIP".
Similarly, the second else if branch does not execute when its arguments
are equal, and it only executes when crypt->ops->name equals "TKIP".
The else branch never executes.
It is unlikely that this is working as intended.
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rebecca Mckeever <remckee0@gmail.com>
Link: https://lore.kernel.org/r/20220416102434.97567-1-remckee0@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
index 9885917b91996..d6829cf6f7e3d 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
@@ -688,9 +688,9 @@ int ieee80211_wx_get_encode_ext(struct ieee80211_device *ieee,
} else {
if (strcmp(crypt->ops->name, "WEP") == 0)
ext->alg = IW_ENCODE_ALG_WEP;
- else if (strcmp(crypt->ops->name, "TKIP"))
+ else if (strcmp(crypt->ops->name, "TKIP") == 0)
ext->alg = IW_ENCODE_ALG_TKIP;
- else if (strcmp(crypt->ops->name, "CCMP"))
+ else if (strcmp(crypt->ops->name, "CCMP") == 0)
ext->alg = IW_ENCODE_ALG_CCMP;
else
return -EINVAL;
--
2.30.2