From 1d4de9edd6c9ad676b20729ab15c04b78e9a50c5 Mon Sep 17 00:00:00 2001
From: Marc Pignat <marc.pignat@hevs.ch>
Date: Thu, 9 Aug 2007 13:56:29 +0200
Subject: [PATCH] mmc: at91_mci: disable handling of blocks with size not
multiple of 4 bytes
This kind of transfer is not supported, so don't advertise it and make it
fail early.
Signed-off-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
---
drivers/mmc/host/at91_mci.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index 8ec317802347..6ba98a49612d 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -428,6 +428,14 @@ static void at91_mci_send_command(struct at91mci_host *host, struct mmc_command
}
if (data) {
+
+ if ( data->blksz & 0x3 ) {
+ pr_debug("Unsupported block size\n");
+ cmd->error = -EINVAL;
+ mmc_request_done(host->mmc, host->request);
+ return;
+ }
+
block_length = data->blksz;
blocks = data->blocks;
--
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