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Subject[tip:perf/urgent] hw-breakpoints: Let modify_user_hw_breakpoint() return an int
Commit-ID:  4983ee49cf0393fd786891dd53af41146cf9f98b
Gitweb: http://git.kernel.org/tip/4983ee49cf0393fd786891dd53af41146cf9f98b
Author: Heiko Carstens <heiko.carstens@de.ibm.com>
AuthorDate: Mon, 14 Dec 2009 10:24:12 +0100
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Mon, 14 Dec 2009 10:42:57 +0100

hw-breakpoints: Let modify_user_hw_breakpoint() return an int

Let modify_user_hw_breakpoint return an int to avoid hundreds of
compile warnings like this one:

include/linux/hw_breakpoint.h: In function 'modify_user_hw_breakpoint':
include/linux/hw_breakpoint.h:96:
warning: return makes integer from pointer without a cast

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20091214092412.GA5242@osiris.boeblingen.de.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
include/linux/hw_breakpoint.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/include/linux/hw_breakpoint.h b/include/linux/hw_breakpoint.h
index 41235c9..3f3ac2f 100644
--- a/include/linux/hw_breakpoint.h
+++ b/include/linux/hw_breakpoint.h
@@ -90,7 +90,7 @@ static inline struct arch_hw_breakpoint *counter_arch_bp(struct perf_event *bp)
static inline struct perf_event *
register_user_hw_breakpoint(struct perf_event_attr *attr,
perf_overflow_handler_t triggered,
- struct task_struct *tsk) { return NULL; }
+ struct task_struct *tsk) { return 0; }
static inline int
modify_user_hw_breakpoint(struct perf_event *bp,
struct perf_event_attr *attr) { return -ENOSYS; }

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