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-rw-r--r--drivers/mmc/card/block.c4
-rw-r--r--drivers/mmc/host/at91_mci.c20
2 files changed, 19 insertions, 5 deletions
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 86dbb36..6986f39 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -103,8 +103,10 @@ static int mmc_blk_open(struct inode *inode, struct file *filp)
check_disk_change(inode->i_bdev);
ret = 0;
- if ((filp->f_mode & FMODE_WRITE) && md->read_only)
+ if ((filp->f_mode & FMODE_WRITE) && md->read_only) {
+ mmc_blk_put(md);
ret = -EROFS;
+ }
}
return ret;
diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index 6915f40..1f8b5b3 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -621,12 +621,21 @@ static void at91_mci_send_command(struct at91mci_host *host, struct mmc_command
if (cpu_is_at91sam9260 () || cpu_is_at91sam9263())
if (host->total_length < 12)
host->total_length = 12;
- host->buffer = dma_alloc_coherent(NULL,
- host->total_length,
- &host->physical_address, GFP_KERNEL);
+
+ host->buffer = kmalloc(host->total_length, GFP_KERNEL);
+ if (!host->buffer) {
+ pr_debug("Can't alloc tx buffer\n");
+ cmd->error = -ENOMEM;
+ mmc_request_done(host->mmc, host->request);
+ return;
+ }
at91_mci_sg_to_dma(host, data);
+ host->physical_address = dma_map_single(NULL,
+ host->buffer, host->total_length,
+ DMA_TO_DEVICE);
+
pr_debug("Transmitting %d bytes\n", host->total_length);
at91_mci_write(host, ATMEL_PDC_TPR, host->physical_address);
@@ -694,7 +703,10 @@ static void at91_mci_completed_command(struct at91mci_host *host, unsigned int s
cmd->resp[3] = at91_mci_read(host, AT91_MCI_RSPR(3));
if (host->buffer) {
- dma_free_coherent(NULL, host->total_length, host->buffer, host->physical_address);
+ dma_unmap_single(NULL,
+ host->physical_address, host->total_length,
+ DMA_TO_DEVICE);
+ kfree(host->buffer);
host->buffer = NULL;
}
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