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path: root/drivers/mmc/host/sdhci.c
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Diffstat (limited to 'drivers/mmc/host/sdhci.c')
-rw-r--r--drivers/mmc/host/sdhci.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 17701c3..b27c1a2 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -389,6 +389,7 @@ static int sdhci_adma_table_pre(struct sdhci_host *host,
if (offset) {
if (data->flags & MMC_DATA_WRITE) {
buffer = sdhci_kmap_atomic(sg, &flags);
+ WARN_ON(((long)buffer & PAGE_MASK) > (PAGE_SIZE - 3));
memcpy(align, buffer, offset);
sdhci_kunmap_atomic(buffer, &flags);
}
@@ -510,6 +511,7 @@ static void sdhci_adma_table_post(struct sdhci_host *host,
size = 4 - (sg_dma_address(sg) & 0x3);
buffer = sdhci_kmap_atomic(sg, &flags);
+ WARN_ON(((long)buffer & PAGE_MASK) > (PAGE_SIZE - 3));
memcpy(buffer, align, size);
sdhci_kunmap_atomic(buffer, &flags);
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