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x86,kgdb: Always initialize the hw breakpoint attribute

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It is required to call hw_breakpoint_init() on an attr before using it
in any other calls.  This fixes the problem where kgdb will sometimes
fail to initialize on x86_64.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: 2.6.33 <stable@kernel.org>
LKML-Reference: <1269975907-27602-1-git-send-email-jason.wessel@windriver.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
This commit is contained in:
Jason Wessel 2010-03-30 14:05:07 -05:00 committed by Frederic Weisbecker
parent e49a5bd381
commit ab310b5edb
1 changed files with 1 additions and 1 deletions
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arch/x86/kernel/kgdb.c
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@ -618,8 +618,8 @@ int kgdb_arch_init(void)
* portion of kgdb because this operation requires mutexs to
* complete.
*/
hw_breakpoint_init(&attr);
attr.bp_addr = (unsigned long)kgdb_arch_init;
attr.type = PERF_TYPE_BREAKPOINT;
attr.bp_len = HW_BREAKPOINT_LEN_1;
attr.bp_type = HW_BREAKPOINT_W;
attr.disabled = 1;