[patch v2 06/16] MMC: Fix S3C24XX IRQ enable during PIO transfers

Ben Dooks
2008-06-16T14:36:43Z

[-- Attachment #1: thirdparty/openmoko-mci/s3cmci-unfinished-write-fix.patch --]
[-- Type: text/plain, Size: 966 bytes --]

From: Roman Moracik <roman.moravcik@gmail.com>

Fix Bug #677 - I/O errors on heavy microSD writes for 2.6.22.x.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>

Index: linux-2.6.26-rc5-q2/drivers/mmc/host/s3cmci.c
===================================================================
--- linux-2.6.26-rc5-q2.orig/drivers/mmc/host/s3cmci.c 2008-06-08 13:57:35.000000000 +0100
+++ linux-2.6.26-rc5-q2/drivers/mmc/host/s3cmci.c 2008-06-08 13:57:37.000000000 +0100
@@ -327,6 +327,7 @@ static void pio_tasklet(unsigned long da
{
struct s3cmci_host *host = (struct s3cmci_host *) data;

+ disable_irq(host->irq);

if (host->pio_active == XFER_WRITE)
do_pio_write(host);
@@ -345,9 +346,9 @@ static void pio_tasklet(unsigned long da
host->mrq->data->error = MMC_ERR_DMA;
}

- disable_irq(host->irq);
finalize_request(host);
- }
+ } else
+ enable_irq(host->irq);
}

/*