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Subject[PATCH v2] staging: rtl8192e: remove bogus ssid character sign test
Date
This error triggers on some architectures with unsigned `char` types:

drivers/staging/rtl8192e/rtllib_softmac_wx.c:459 rtllib_wx_set_essid() warn: impossible condition '(extra[i] < 0) => (0-255 < 0)'

But actually, the entire test is bogus, as ssids don't have any sign
validity rules like that. So just remove this check look all together.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-staging@lists.linux.dev
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---
Changes v1->v2:
- Remove ssid sign test entirely rather than casting to `s8 *`.

drivers/staging/rtl8192e/rtllib_softmac_wx.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtllib_softmac_wx.c b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
index f9589c5b62ba..1e5ad3b476ef 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac_wx.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
@@ -439,7 +439,7 @@ int rtllib_wx_set_essid(struct rtllib_device *ieee,
union iwreq_data *wrqu, char *extra)
{

- int ret = 0, len, i;
+ int ret = 0, len;
short proto_started;
unsigned long flags;

@@ -455,13 +455,6 @@ int rtllib_wx_set_essid(struct rtllib_device *ieee,
goto out;
}

- for (i = 0; i < len; i++) {
- if (extra[i] < 0) {
- ret = -1;
- goto out;
- }
- }
-
if (proto_started)
rtllib_stop_protocol(ieee, true);

--
2.38.1
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