From: Greg KH <gregkh@suse.de>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org,
alan@lxorguk.ukuu.org.uk, Per Forlin <per.forlin@stericsson.com>,
Ulf Hansson <ulf.hansson@stericsson.com>,
Russell King <rmk+kernel@arm.linux.org.uk>
Subject: [6/7] ARM: 7220/1: mmc: mmci: Fixup error handling for dma
Date: Tue, 03 Jan 2012 14:01:36 -0800 [thread overview]
Message-ID: <20120103220243.148061097@clark.kroah.org> (raw)
In-Reply-To: <20120103220302.GA28338@kroah.com>
2.6.32-longterm review patch. If anyone has any objections, please let me know.
------------------
From: Ulf Hansson <ulf.hansson@stericsson.com>
commit 3b6e3c73851a9a4b0e6ed9d378206341dd65e8a5 upstream.
When getting a cmd irq during an ongoing data transfer
with dma, the dma job were never terminated. This is now
corrected.
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Per Forlin <per.forlin@stericsson.com>
Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/mmc/host/mmci.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -232,8 +232,12 @@ mmci_cmd_irq(struct mmci_host *host, str
}
if (!cmd->data || cmd->error) {
- if (host->data)
+ if (host->data) {
+ /* Terminate the DMA transfer */
+ if (dma_inprogress(host))
+ mmci_dma_data_error(host);
mmci_stop_data(host);
+ }
mmci_request_end(host, cmd->mrq);
} else if (!(cmd->data->flags & MMC_DATA_READ)) {
mmci_start_data(host, cmd->data);
next prev parent reply other threads:[~2012-01-03 22:04 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-03 22:03 [0/7] 2.6.32.53-longterm review Greg KH
2012-01-03 22:01 ` [1/7] cfq-iosched: fix cfq_cic_link() race confition Greg KH
2012-01-03 22:01 ` [2/7] SCSI: mpt2sas: _scsih_smart_predicted_fault uses GFP_KERNEL in interrupt context Greg KH
2012-01-03 22:01 ` [3/7] MXC PWM: should active during DOZE/WAIT/DBG mode Greg KH
2012-01-03 22:01 ` [4/7] vfs: __read_cache_page should use gfp argument rather than GFP_KERNEL Greg KH
2012-01-03 22:01 ` [5/7] ARM:imx:fix pwm period value Greg KH
2012-01-03 22:01 ` Greg KH [this message]
2012-01-03 22:01 ` [7/7] watchdog: hpwdt: Changes to handle NX secure bit in 32bit path Greg KH
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