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staging: rtl8192e: remove bogus ssid character sign test

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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>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20221025122150.583617-1-Jason@zx2c4.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jason A. Donenfeld
2022-10-25 14:21:50 +02:00
committed by Greg Kroah-Hartman
parent 9abf2313ad
commit 937ec9f7d5
1 changed files with 1 additions and 8 deletions
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9
drivers/staging/rtl8192e/rtllib_softmac_wx.c
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@@ -439,7 +439,7 @@ int rtllib_wx_set_essid(struct rtllib_device *ieee,
union iwreq_data *wrqu, char *extra) union iwreq_data *wrqu, char *extra)
{ {
int ret = 0, len, i; int ret = 0, len;
short proto_started; short proto_started;
unsigned long flags; unsigned long flags;
@@ -455,13 +455,6 @@ int rtllib_wx_set_essid(struct rtllib_device *ieee,
goto out; goto out;
} }
for (i = 0; i < len; i++) {
if (extra[i] < 0) {
ret = -1;
goto out;
}
}
if (proto_started) if (proto_started)
rtllib_stop_protocol(ieee, true); rtllib_stop_protocol(ieee, true);