| From foo@baz Tue Apr 9 12:12:43 2002 |
| From: Andrew Hastings <abh@cray.com> |
| Date: Wed Oct 17 18:04:33 2007 +0200 |
| Subject: x86: fix off-by-one in find_next_zero_string |
| |
| From: Andrew Hastings <abh@cray.com> |
| |
| patch 801916c1b369b637ce799e6c71a94963ff63df79 in mainline. |
| |
| x86: fix off-by-one in find_next_zero_string |
| |
| 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> |
| Signed-off-by: Andi Kleen <ak@suse.de> |
| Signed-off-by: Ingo Molnar <mingo@elte.hu> |
| Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
| |
| --- |
| arch/x86_64/lib/bitstr.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/arch/x86_64/lib/bitstr.c |
| +++ b/arch/x86_64/lib/bitstr.c |
| @@ -14,7 +14,7 @@ find_next_zero_string(unsigned long *bit |
| |
| /* 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)) { |
