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author | Paolo Galtieri <pgaltieri@mvista.com> | 2005-10-11 11:29:07 -0400 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-11 12:46:54 -0400 |
commit | a0c111c631e7ab4abd68920debd44259160812ef (patch) | |
tree | bfcafa019ba2fb2bf38e5a07f9f5958b7ecb697f /arch/m32r | |
parent | 1bef40032992320dd25a266fc166bfb8fa3f2f59 (diff) |
[PATCH] ppc highmem fix
I've noticed that the calculations for seg_size and nr_segs in
__dma_sync_page_highmem() (arch/ppc/kernel/dma-mapping.c) are wrong. The
incorrect calculations can result in either an oops or a panic when running
fsck depending on the size of the partition.
The problem with the seg_size calculation is that it can result in a
negative number if size is offset > size. The problem with the nr_segs
caculation is returns the wrong number of segments, e.g. it returns 1 when
size is 200 and offset is 4095, when it should return 2 or more.
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/m32r')
0 files changed, 0 insertions, 0 deletions