linux-kernel - [tip:perf/urgent] hw-breakpoints: Let modify_user_hw

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Message-ID: <tip-4983ee49cf0393fd786891dd53af41146cf9f98b@git.kernel.org>
Date:	Mon, 14 Dec 2009 09:49:44 GMT
From:	tip-bot for Heiko Carstens <heiko.carstens@...ibm.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	fweisbec@...il.com, heiko.carstens@...ibm.com, tglx@...utronix.de,
	mingo@...e.hu
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@...ibm.com>
AuthorDate: Mon, 14 Dec 2009 10:24:12 +0100
Committer:  Ingo Molnar <mingo@...e.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@...ibm.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
LKML-Reference: <20091214092412.GA5242@...ris.boeblingen.de.ibm.com>
Signed-off-by: Ingo Molnar <mingo@...e.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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