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x86: fix off-by-one in find_next_zero_string

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Fix an off-by-one error in find_next_zero_string which prevents
allocating the last bit.

[ tglx: arch/x86 adaptation ]

Signed-off-by: Andrew Hastings <abh@cray.com> on behalf of Cray Inc.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Andrew Hastings 2007-10-17 18:04:33 +02:00 committed by Thomas Gleixner
parent 6442eea937
commit 801916c1b3
1 changed files with 1 additions and 1 deletions
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arch/x86/lib/bitstr_64.c
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@ -14,7 +14,7 @@ find_next_zero_string(unsigned long *bitmap, long start, long nbits, int len)
/* could test bitsliced, but it's hardly worth it */
end = n+len;
if (end >= nbits)
if (end > nbits)
return -1;
for (i = n+1; i < end; i++) {
if (test_bit(i, bitmap)) {