linux-kernel - [PATCH 2/2] mmc: mxcmmc: fix the default value for available voltages into mxcmci

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 30 Sep 2014 16:59:38 +0200
From:	Matteo Facchinetti <matteo.facchinetti@...ius-es.it>
To:	chris@...ntf.net, ulf.hansson@...aro.org
Cc:	shc_work@...l.ru, s.hauer@...gutronix.de, peter.griffin@...aro.org,
	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
	linucppc-dev@...ts.ozlabs.org, agust@...x.de, gsi@...x.de,
	sbabic@...x.de,
	Matteo Facchinetti <matteo.facchinetti@...ius-es.it>
Subject: [PATCH 2/2] mmc: mxcmmc: fix the default value for available voltages into mxcmci_probe

From: Matteo Facchinetti <matteo.facchinetti@...ius-es.it>

If available voltages are not given, mmc_regulator_get_supply() function
returns 0 and mxcmmc driver doesn't set a value for ocr_avail mask.

In accordance with the comment in platform_data/mmc-mxcmmc.h,
fix it, assuming MMC_VDD_32_33 | MMC_VDD_33_34 as default value.

Signed-off-by: Matteo Facchinetti <matteo.facchinetti@...ius-es.it>
---
 drivers/mmc/host/mxcmmc.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index 536a898..5350dc5 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -1077,13 +1077,13 @@ static int mxcmci_probe(struct platform_device *pdev)
 		dat3_card_detect = true;
 
 	ret = mmc_regulator_get_supply(mmc);
-	if (ret) {
-		if (pdata && ret != -EPROBE_DEFER)
-			mmc->ocr_avail = pdata->ocr_avail ? :
-				MMC_VDD_32_33 | MMC_VDD_33_34;
-		else
-			goto out_free;
-	}
+	if (ret == -EPROBE_DEFER)
+		goto out_free;
+
+	if (pdata && pdata->ocr_avail)
+		mmc->ocr_avail = pdata->ocr_avail;
+	else
+		mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
 
 	if (dat3_card_detect)
 		host->default_irq_mask =
-- 
1.8.3.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/