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staging: wfx: add sanity checks to hif_join()

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Add a few check on start of hif_join().

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200401110405.80282-2-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jérôme Pouiller 2020-04-01 13:03:34 +02:00 committed by Greg Kroah-Hartman
parent a920f3be52
commit a6bdff3f62
1 changed files with 2 additions and 0 deletions
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2
drivers/staging/wfx/hif_tx.c
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@ -297,6 +297,8 @@ int hif_join(struct wfx_vif *wvif, const struct ieee80211_bss_conf *conf,
struct hif_req_join *body = wfx_alloc_hif(sizeof(*body), &hif);
WARN_ON(!conf->basic_rates);
WARN_ON(sizeof(body->ssid) < ssidlen);
WARN(!conf->ibss_joined && !ssidlen, "joining an unknown BSS");
body->infrastructure_bss_mode = !conf->ibss_joined;
body->short_preamble = conf->use_short_preamble;
if (channel && channel->flags & IEEE80211_CHAN_NO_IR)