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mmc: Fix crash in mmc_block on 64-bit

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Fairly simple. "dev_use" was being allocated as a zero length array
because of bad math on 64-bit systems, causing a crash in
find_first_zero_bit(). One-liner follows:

Signed-off-by: Ben Collins <[email protected]>
Acked-by: Pierre Ossman <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Ben Collins 2008-06-05 19:10:21 -04:00 • committed by Linus Torvalds
commit 203c80187e
1 changed files with 1 additions and 1 deletions
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2
drivers/mmc/card/block.c
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@ -46,7 +46,7 @@
#define MMC_SHIFT 3
#define MMC_NUM_MINORS (256 >> MMC_SHIFT)
static unsigned long dev_use[MMC_NUM_MINORS/(8*sizeof(unsigned long))];
static DECLARE_BITMAP(dev_use, MMC_NUM_MINORS);
/*
* There is one mmc_blk_data per slot.