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sdio: check that addresses are within the address space 

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Pierre Ossman 2009-03-05 19:40:27 +01:00
parent c8d718f103
commit be6f19fc24
1 changed files with 8 additions and 0 deletions
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8
drivers/mmc/core/sdio_ops.c
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@ -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));