s3cmci: fix direct write to interrupt mask

The clear_imask() call should be used to clear the interrupt mask
register, as it may end up clearing the SDIO interrupt bit if this is
enabled.

Change all writes of zero to SDIIMSK register to use clear_imask() ready
for the SDIO updates.

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index 6e408452855cbffb59783a4a6ae4c8513253da8d..28a4a4535f385474b8e970af2c422945770d76bc 100644 (file)
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -681,9 +681,9 @@ out:
 fail_request:
        host->mrq->data->error = -EINVAL;
        host->complete_what = COMPLETION_FINALIZE;
-       writel(0, host->base + host->sdiimsk);
-       goto out;
+       clear_imask(host);
 
+       goto out;
 }
 
 static void finalize_request(struct s3cmci_host *host)
@@ -726,7 +726,7 @@ static void finalize_request(struct s3cmci_host *host)
        writel(0, host->base + S3C2410_SDICMDARG);
        writel(S3C2410_SDIDCON_STOP, host->base + S3C2410_SDIDCON);
        writel(0, host->base + S3C2410_SDICMDCON);
-       writel(0, host->base + host->sdiimsk);
+       clear_imask(host);
 
        if (cmd->data && cmd->error)
                cmd->data->error = cmd->error;