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From: Jerome Pouiller <Jerome.Pouiller@silabs.com>
To: devel@driverdev.osuosl.org, linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Kalle Valo" <kvalo@codeaurora.org>,
	"David S . Miller" <davem@davemloft.net>,
	"Jérôme Pouiller" <jerome.pouiller@silabs.com>
Subject: [PATCH 12/31] staging: wfx: simplify API coherency check
Date: Fri, 10 Sep 2021 18:04:45 +0200	[thread overview]
Message-ID: <20210910160504.1794332-13-Jerome.Pouiller@silabs.com> (raw)
In-Reply-To: <20210910160504.1794332-1-Jerome.Pouiller@silabs.com>

From: Jérôme Pouiller <jerome.pouiller@silabs.com>

The 'channel' argument of hif_join() should never be NULL. hif_join()
does not have the responsibility to recover bug of caller. A call to
WARN() at the beginning of the function reminds this constraint to the
developer.

In current code, if the argument channel is NULL, memory leaks. The new
code just emit a warning and does not give the illusion that it is
supported (and indeed a Oops will probably raise a few lines below).

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
---
 drivers/staging/wfx/hif_tx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/wfx/hif_tx.c b/drivers/staging/wfx/hif_tx.c
index 14b7e047916e..6ffbae32028b 100644
--- a/drivers/staging/wfx/hif_tx.c
+++ b/drivers/staging/wfx/hif_tx.c
@@ -299,10 +299,9 @@ int hif_join(struct wfx_vif *wvif, const struct ieee80211_bss_conf *conf,
 
 	WARN_ON(!conf->beacon_int);
 	WARN_ON(!conf->basic_rates);
+	WARN_ON(!channel);
 	WARN_ON(sizeof(body->ssid) < ssidlen);
 	WARN(!conf->ibss_joined && !ssidlen, "joining an unknown BSS");
-	if (WARN_ON(!channel))
-		return -EINVAL;
 	if (!hif)
 		return -ENOMEM;
 	body->infrastructure_bss_mode = !conf->ibss_joined;
-- 
2.33.0


  parent reply	other threads:[~2021-09-10 16:08 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-10 16:04 [PATCH 00/31] [PATCH 00/31] staging/wfx: usual maintenance Jerome Pouiller
2021-09-10 16:04 ` [PATCH 01/31] staging: wfx: use abbreviated message for "incorrect sequence" Jerome Pouiller
2021-09-10 16:04 ` [PATCH 02/31] staging: wfx: do not send CAB while scanning Jerome Pouiller
2021-09-10 16:31   ` Kari Argillander
2021-09-10 16:54     ` Jérôme Pouiller
2021-09-10 17:01       ` Kari Argillander
2021-09-10 17:12         ` Jérôme Pouiller
2021-09-10 16:04 ` [PATCH 03/31] staging: wfx: ignore PS when STA/AP share same channel Jerome Pouiller
2021-09-10 16:04 ` [PATCH 04/31] staging: wfx: wait for SCAN_CMPL after a SCAN_STOP Jerome Pouiller
2021-09-10 16:04 ` [PATCH 05/31] staging: wfx: avoid possible lock-up during scan Jerome Pouiller
2021-09-10 16:04 ` [PATCH 06/31] staging: wfx: drop unused argument from hif_scan() Jerome Pouiller
2021-09-10 16:04 ` [PATCH 07/31] staging: wfx: fix atomic accesses in wfx_tx_queue_empty() Jerome Pouiller
2021-09-10 16:04 ` [PATCH 08/31] staging: wfx: take advantage of wfx_tx_queue_empty() Jerome Pouiller
2021-09-10 16:04 ` [PATCH 09/31] staging: wfx: declare support for TDLS Jerome Pouiller
2021-09-10 16:04 ` [PATCH 10/31] staging: wfx: fix support for CSA Jerome Pouiller
2021-09-10 16:04 ` [PATCH 11/31] staging: wfx: relax the PDS existence constraint Jerome Pouiller
2021-09-10 16:04 ` Jerome Pouiller [this message]
2021-09-10 16:04 ` [PATCH 13/31] staging: wfx: update with API 3.8 Jerome Pouiller
2021-09-10 16:43   ` Kari Argillander
2021-09-10 17:03     ` Jérôme Pouiller
2021-09-10 16:04 ` [PATCH 14/31] staging: wfx: uniformize counter names Jerome Pouiller
2021-09-10 16:04 ` [PATCH 15/31] staging: wfx: fix misleading 'rate_id' usage Jerome Pouiller
2021-09-10 16:04 ` [PATCH 16/31] staging: wfx: declare variables at beginning of functions Jerome Pouiller
2021-09-10 16:04 ` [PATCH 17/31] staging: wfx: simplify hif_join() Jerome Pouiller
2021-09-10 16:38   ` Kari Argillander
2021-09-10 16:04 ` [PATCH 18/31] staging: wfx: reorder function for slightly better eye candy Jerome Pouiller
2021-09-10 16:04 ` [PATCH 19/31] staging: wfx: fix error names Jerome Pouiller
2021-09-10 16:04 ` [PATCH 20/31] staging: wfx: apply naming rules in hif_tx_mib.c Jerome Pouiller
2021-09-10 16:04 ` [PATCH 21/31] staging: wfx: remove unused definition Jerome Pouiller
2021-09-10 16:04 ` [PATCH 22/31] staging: wfx: remove useless debug statement Jerome Pouiller
2021-09-10 16:04 ` [PATCH 23/31] staging: wfx: fix space after cast operator Jerome Pouiller
2021-09-10 16:04 ` [PATCH 24/31] staging: wfx: remove references to WFxxx in comments Jerome Pouiller
2021-09-10 16:04 ` [PATCH 25/31] staging: wfx: update files descriptions Jerome Pouiller
2021-09-10 16:04 ` [PATCH 26/31] staging: wfx: reformat comment Jerome Pouiller
2021-09-10 16:05 ` [PATCH 27/31] staging: wfx: avoid c99 comments Jerome Pouiller
2021-09-10 16:05 ` [PATCH 28/31] staging: wfx: fix comments styles Jerome Pouiller
2021-09-10 16:05 ` [PATCH 29/31] staging: wfx: remove useless comments after #endif Jerome Pouiller
2021-09-10 16:27   ` Kari Argillander
2021-09-10 16:49     ` Jérôme Pouiller
2021-09-10 17:05       ` Kari Argillander
2021-09-10 16:05 ` [PATCH 30/31] staging: wfx: explain the purpose of wfx_send_pds() Jerome Pouiller
2021-09-10 16:05 ` [PATCH 31/31] staging: wfx: indent functions arguments Jerome Pouiller
2021-09-10 16:57   ` Kari Argillander
2021-09-10 17:12     ` Jérôme Pouiller
2021-09-10 17:28       ` Kari Argillander
2021-09-10 17:07 ` [PATCH 00/31] [PATCH 00/31] staging/wfx: usual maintenance Kari Argillander
2021-09-10 17:15   ` Jérôme Pouiller

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