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[88.121.166.205]) by smtp.gmail.com with ESMTPSA id v70sm51327wmf.18.2016.07.07.01.03.39 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 07 Jul 2016 01:03:39 -0700 (PDT) From: Daniel Lezcano To: tglx@linutronix.de, daniel.lezcano@linaro.org Subject: [PATCH 46/93] clocksource/drivers/time-lpc32xx: Convert init function to return error Date: Thu, 7 Jul 2016 10:01:19 +0200 Message-Id: <1467878526-1238-46-git-send-email-daniel.lezcano@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1467878526-1238-1-git-send-email-daniel.lezcano@linaro.org> References: <577E0BED.3020608@linaro.org> <1467878526-1238-1-git-send-email-daniel.lezcano@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160707_010402_060657_F19C8A8A X-CRM114-Status: GOOD ( 14.95 ) X-Spam-Score: -2.7 (--) X-Spam-Report: SpamAssassin version 3.4.0 on bombadil.infradead.org summary: Content analysis details: (-2.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [2a00:1450:400c:c09:0:0:0:236 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Sylvain Lemieux MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano Acked-by: Sylvain Lemieux --- drivers/clocksource/time-lpc32xx.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) -- 1.9.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel diff --git a/drivers/clocksource/time-lpc32xx.c b/drivers/clocksource/time-lpc32xx.c index daae61e..cb5b866 100644 --- a/drivers/clocksource/time-lpc32xx.c +++ b/drivers/clocksource/time-lpc32xx.c @@ -288,16 +288,16 @@ err_clk_enable: * This function asserts that we have exactly one clocksource and one * clock_event_device in the end. */ -static void __init lpc32xx_timer_init(struct device_node *np) +static int __init lpc32xx_timer_init(struct device_node *np) { static int has_clocksource, has_clockevent; - int ret; + int ret = 0; if (!has_clocksource) { ret = lpc32xx_clocksource_init(np); if (!ret) { has_clocksource = 1; - return; + return 0; } } @@ -305,8 +305,10 @@ static void __init lpc32xx_timer_init(struct device_node *np) ret = lpc32xx_clockevent_init(np); if (!ret) { has_clockevent = 1; - return; + return 0; } } + + return ret; } -CLOCKSOURCE_OF_DECLARE(lpc32xx_timer, "nxp,lpc3220-timer", lpc32xx_timer_init); +CLOCKSOURCE_OF_DECLARE_RET(lpc32xx_timer, "nxp,lpc3220-timer", lpc32xx_timer_init);