linux-kernel - [PATCH] MMC: Do not set unsupported bits in OCR response

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, 10 Oct 2006 16:23:39 +0300
From:	Timo Teras <timo.teras@...idboot.com>
To:	Russell King <rmk+lkml@....linux.org.uk>, drzeus-list@...eus.cx
Cc:	Timo Teras <timo.teras@...idboot.com>, linux-kernel@...r.kernel.org
Subject: [PATCH] MMC: Do not set unsupported bits in OCR response

The card might go to inactive state (according to specification), if
there are unsupported bits set in the OCR.

Signed-off-by: Timo Teras <timo.teras@...idboot.com>

---

 drivers/mmc/mmc.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index ee8863c..c6f3077 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -475,7 +475,7 @@ static u32 mmc_select_voltage(struct mmc
        if (bit) {
                bit -= 1;
 
-               ocr = 3 << bit;
+               ocr &= 3 << bit;
 
                host->ios.vdd = bit;
                mmc_set_ios(host);

-
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/