Commit-ID: 1e6dd8adc78d4a153db253d051fd4ef6c49c9019 Gitweb: http://git.kernel.org/tip/1e6dd8adc78d4a153db253d051fd4ef6c49c9019 Author: Dan Carpenter <[email protected]> AuthorDate: Wed, 5 Sep 2012 15:31:26 +0300 Committer: Ingo Molnar <[email protected]> CommitDate: Wed, 19 Sep 2012 17:08:40 +0200
perf: Fix off by one test in perf_reg_value() The test should be >= ARRAY_SIZE() instead of > ARRAY_SIZE(). Signed-off-by: Dan Carpenter <[email protected]> Acked-by: Jiri Olsa <[email protected]> Acked-by: Peter Zijlstra <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- arch/x86/kernel/perf_regs.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/x86/kernel/perf_regs.c b/arch/x86/kernel/perf_regs.c index c5a3e5c..e309cc5 100644 --- a/arch/x86/kernel/perf_regs.c +++ b/arch/x86/kernel/perf_regs.c @@ -57,7 +57,7 @@ static unsigned int pt_regs_offset[PERF_REG_X86_MAX] = { u64 perf_reg_value(struct pt_regs *regs, int idx) { - if (WARN_ON_ONCE(idx > ARRAY_SIZE(pt_regs_offset))) + if (WARN_ON_ONCE(idx >= ARRAY_SIZE(pt_regs_offset))) return 0; return regs_get_register(regs, pt_regs_offset[idx]); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
