mmc: remove BYTEBLOCK capability

Remove the BYTEBLOCK capability and let the broken hosts fail the
requests with -EINVAL instead.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

1 files changed, 10 insertions, 3 deletions

diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c
index b4a56e5e5132..951392d2ce37 100644
--- a/drivers/mmc/host/tifm_sd.c
+++ b/drivers/mmc/host/tifm_sd.c
@@ -626,14 +626,21 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq)
 
         spin_lock_irqsave(&sock->lock, flags);
         if (host->eject) {
-                spin_unlock_irqrestore(&sock->lock, flags);
+                mrq->cmd->error = -ENOMEDIUM;
                 goto err_out;
         }
 
         if (host->req) {
                 printk(KERN_ERR "%s : unfinished request detected\n",
                        sock->dev.bus_id);
-                spin_unlock_irqrestore(&sock->lock, flags);
+                mrq->cmd->error = -ETIMEDOUT;
+                goto err_out;
+        }
+
+        if (mrq->data && (hweight32(mrq->data->blksz) > 1)) {
+                printk(KERN_ERR "%s: Unsupported block size (%d bytes)\n",
+                        sock->dev.bus_id, mrq->data->blksz);
+                mrq->cmd->error = -EINVAL;
                 goto err_out;
         }
 
@@ -722,7 +729,7 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq)
         return;
 
 err_out:
-        mrq->cmd->error = -ETIMEDOUT;
+        spin_unlock_irqrestore(&sock->lock, flags);
         mmc_request_done(mmc, mrq);
 }