redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

mmc: Fix crash in mmc_block on 64-bit 

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 <ben.collins@canonical.com>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Ben Collins 2008-06-05 19:10:21 -04:00 committed by Linus Torvalds
parent b2ab26ab28
commit 203c80187e
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/mmc/card/block.c
View File

@ -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.