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authorPierre Ossman <drzeus@drzeus.cx>2009-03-05 19:40:27 +0100
committerPierre Ossman <drzeus@drzeus.cx>2009-03-24 21:30:00 +0100
commitbe6f19fc24c937112d251232b3dae7e05e96aad1 (patch)
treed7c94b0b797e0f1f84c903c0101b29ef025460fd /drivers
parentc8d718f1037950107f13607ff0b696ffe63df76a (diff)
downloadlinux-be6f19fc24c937112d251232b3dae7e05e96aad1.tar.bz2
sdio: check that addresses are within the address space
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mmc/core/sdio_ops.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mmc/core/sdio_ops.c b/drivers/mmc/core/sdio_ops.c
index c8fa095a4488..4eb7825fd1a7 100644
--- a/drivers/mmc/core/sdio_ops.c
+++ b/drivers/mmc/core/sdio_ops.c
@@ -76,6 +76,10 @@ int mmc_io_rw_direct(struct mmc_card *card, int write, unsigned fn,
BUG_ON(!card);
BUG_ON(fn > 7);
+ /* sanity check */
+ if (addr & ~0x1FFFF)
+ return -EINVAL;
+
memset(&cmd, 0, sizeof(struct mmc_command));
cmd.opcode = SD_IO_RW_DIRECT;
@@ -125,6 +129,10 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn,
WARN_ON(blocks == 0);
WARN_ON(blksz == 0);
+ /* sanity check */
+ if (addr & ~0x1FFFF)
+ return -EINVAL;
+
memset(&mrq, 0, sizeof(struct mmc_request));
memset(&cmd, 0, sizeof(struct mmc_command));
memset(&data, 0, sizeof(struct mmc_data));