linux-kernel - [051/107] mmc: tmio: fix regression in TMIO_MMC_WRPROTECT

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Date:	Thu, 07 Jul 2011 17:16:23 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Guennadi Liakhovetski <g.liakhovetski@....de>,
	Chris Ball <cjb@...top.org>
Subject: [051/107] mmc: tmio: fix regression in TMIO_MMC_WRPROTECT_DISABLE handling

2.6.39-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Guennadi Liakhovetski <g.liakhovetski@....de>

commit 7d8b4c2a4b73da8e3632603691838ca5b2a8c26d upstream.

Commit b6147490e6aac82 ("mmc: tmio: split core functionality, DMA and
MFD glue") broke handling of the TMIO_MMC_WRPROTECT_DISABLE flag by
the tmio-mmc driver. This patch restores the original behaviour.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@....de>
Signed-off-by: Chris Ball <cjb@...top.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/mmc/host/tmio_mmc_pio.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -760,8 +760,8 @@ static int tmio_mmc_get_ro(struct mmc_ho
 	struct tmio_mmc_host *host = mmc_priv(mmc);
 	struct tmio_mmc_data *pdata = host->pdata;
 
-	return ((pdata->flags & TMIO_MMC_WRPROTECT_DISABLE) ||
-		!(sd_ctrl_read32(host, CTL_STATUS) & TMIO_STAT_WRPROTECT));
+	return !((pdata->flags & TMIO_MMC_WRPROTECT_DISABLE) ||
+		 (sd_ctrl_read32(host, CTL_STATUS) & TMIO_STAT_WRPROTECT));
 }
 
 static int tmio_mmc_get_cd(struct mmc_host *mmc)


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