[patch 05/15] MMC: Fix S3C24XX IRQ enable during PIO transfers From: Roman Moracik <roman.moravcik@gmail.com>

[Ben Dooks]

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

Signed-off-by: Ben Dooks <ben-linux@xxxxxxxxx>

Index: linux-2.6.26-rc5-q/drivers/mmc/host/s3cmci.c
===================================================================
--- linux-2.6.26-rc5-q.orig/drivers/mmc/host/s3cmci.c	2008-06-06 15:46:01.000000000 +0100
+++ linux-2.6.26-rc5-q/drivers/mmc/host/s3cmci.c	2008-06-06 15:46:03.000000000 +0100
@@ -313,6 +313,7 @@ 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);
@@ -331,9 +332,9 @@ 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);
 }
 
 /*

-- 
Ben (ben@xxxxxxxxx, http://www.fluff.org/)

  'a smiley only costs 4 bytes'
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