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authorPierre Ossman <drzeus@drzeus.cx>2007-07-24 22:38:53 +0400
committerPierre Ossman <drzeus@drzeus.cx>2007-09-23 11:15:05 +0400
commit255d01af9a990fd5166f04ed0cc0b30b7b67e81e (patch)
tree0e88bc62b3e988bb578cf7d2dea80270a6d0a4c1 /drivers/mmc/host/mmci.c
parentb146d26a61e0feab2f12a98ae83fd352830899c0 (diff)
downloadlinux-255d01af9a990fd5166f04ed0cc0b30b7b67e81e.tar.xz
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>
Diffstat (limited to 'drivers/mmc/host/mmci.c')
-rw-r--r--drivers/mmc/host/mmci.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index d53e9a8bdaa2..4a72772f4fe4 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -391,6 +391,14 @@ static void mmci_request(struct mmc_host *mmc, struct mmc_request *mrq)
WARN_ON(host->mrq != NULL);
+ if (mrq->data && (hweight32(mrq->data->blksz) > 1)) {
+ printk(KERN_ERR "%s: Unsupported block size (%d bytes)\n",
+ mmc_hostname(mmc), mrq->data->blksz);
+ mrq->cmd->error = -EINVAL;
+ mmc_request_done(mmc, mrq);
+ return;
+ }
+
spin_lock_irq(&host->lock);
host->mrq = mrq;