From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752003AbcEIRcx (ORCPT ); Mon, 9 May 2016 13:32:53 -0400 Received: from mail.kernel.org ([198.145.29.136]:49311 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751040AbcEIRcu (ORCPT ); Mon, 9 May 2016 13:32:50 -0400 From: Krzysztof Kozlowski To: Sylwester Nawrocki , Tomasz Figa , Michael Turquette , Stephen Boyd , Kukjin Kim , Krzysztof Kozlowski , linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Javier Martinez Canillas , Krzysztof Kozlowski Subject: [PATCH v2] clk: samsung: Remove useless check for return value of samsung_clk_init Date: Mon, 9 May 2016 19:32:31 +0200 Message-Id: <1462815151-14396-1-git-send-email-krzk@kernel.org> X-Mailer: git-send-email 2.5.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The samsung_clk_init() cannot return NULL. Either it returns allocated memory or it panics. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Javier Martinez Canillas --- Changes since v1: 1. Remove the check from most of other Samsung clock drivers (suggested by Javier). --- drivers/clk/samsung/clk-exynos4.c | 2 -- drivers/clk/samsung/clk-exynos5250.c | 3 +-- drivers/clk/samsung/clk-exynos5420.c | 2 -- drivers/clk/samsung/clk-exynos5440.c | 2 -- drivers/clk/samsung/clk-s3c2410.c | 2 -- drivers/clk/samsung/clk-s3c2412.c | 2 -- drivers/clk/samsung/clk-s3c2443.c | 2 -- drivers/clk/samsung/clk-s3c64xx.c | 2 -- drivers/clk/samsung/clk-s5pv210.c | 2 -- 9 files changed, 1 insertion(+), 18 deletions(-) diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c index 7b3d0f975987..2f458233908b 100644 --- a/drivers/clk/samsung/clk-exynos4.c +++ b/drivers/clk/samsung/clk-exynos4.c @@ -1450,8 +1450,6 @@ static void __init exynos4_clk_init(struct device_node *np, panic("%s: failed to map registers\n", __func__); ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); samsung_clk_of_register_fixed_ext(ctx, exynos4_fixed_rate_ext_clks, ARRAY_SIZE(exynos4_fixed_rate_ext_clks), diff --git a/drivers/clk/samsung/clk-exynos5250.c b/drivers/clk/samsung/clk-exynos5250.c index 837197db4ffb..d8621cf31786 100644 --- a/drivers/clk/samsung/clk-exynos5250.c +++ b/drivers/clk/samsung/clk-exynos5250.c @@ -805,8 +805,7 @@ static void __init exynos5250_clk_init(struct device_node *np) } ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); + samsung_clk_of_register_fixed_ext(ctx, exynos5250_fixed_rate_ext_clks, ARRAY_SIZE(exynos5250_fixed_rate_ext_clks), ext_clk_match); diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c index 92382cef9f90..770c0f007c6b 100644 --- a/drivers/clk/samsung/clk-exynos5420.c +++ b/drivers/clk/samsung/clk-exynos5420.c @@ -1356,8 +1356,6 @@ static void __init exynos5x_clk_init(struct device_node *np, exynos5x_soc = soc; ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); samsung_clk_of_register_fixed_ext(ctx, exynos5x_fixed_rate_ext_clks, ARRAY_SIZE(exynos5x_fixed_rate_ext_clks), diff --git a/drivers/clk/samsung/clk-exynos5440.c b/drivers/clk/samsung/clk-exynos5440.c index c57cff1e1798..22c73d4a5ee3 100644 --- a/drivers/clk/samsung/clk-exynos5440.c +++ b/drivers/clk/samsung/clk-exynos5440.c @@ -125,8 +125,6 @@ static void __init exynos5440_clk_init(struct device_node *np) } ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); samsung_clk_of_register_fixed_ext(ctx, exynos5440_fixed_rate_ext_clks, ARRAY_SIZE(exynos5440_fixed_rate_ext_clks), ext_clk_match); diff --git a/drivers/clk/samsung/clk-s3c2410.c b/drivers/clk/samsung/clk-s3c2410.c index d7b011c1fcf8..d7a1e772d95a 100644 --- a/drivers/clk/samsung/clk-s3c2410.c +++ b/drivers/clk/samsung/clk-s3c2410.c @@ -374,8 +374,6 @@ void __init s3c2410_common_clk_init(struct device_node *np, unsigned long xti_f, } ctx = samsung_clk_init(np, reg_base, NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); /* Register external clocks only in non-dt cases */ if (!np) diff --git a/drivers/clk/samsung/clk-s3c2412.c b/drivers/clk/samsung/clk-s3c2412.c index effe3736ec6b..ec873ee15d37 100644 --- a/drivers/clk/samsung/clk-s3c2412.c +++ b/drivers/clk/samsung/clk-s3c2412.c @@ -265,8 +265,6 @@ void __init s3c2412_common_clk_init(struct device_node *np, unsigned long xti_f, } ctx = samsung_clk_init(np, reg_base, NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); /* Register external clocks only in non-dt cases */ if (!np) diff --git a/drivers/clk/samsung/clk-s3c2443.c b/drivers/clk/samsung/clk-s3c2443.c index 37562783b25e..5e24a17e10e6 100644 --- a/drivers/clk/samsung/clk-s3c2443.c +++ b/drivers/clk/samsung/clk-s3c2443.c @@ -400,8 +400,6 @@ void __init s3c2443_common_clk_init(struct device_node *np, unsigned long xti_f, } ctx = samsung_clk_init(np, reg_base, NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); /* Register external clocks only in non-dt cases */ if (!np) diff --git a/drivers/clk/samsung/clk-s3c64xx.c b/drivers/clk/samsung/clk-s3c64xx.c index 60aa775bd374..a48bd5f17330 100644 --- a/drivers/clk/samsung/clk-s3c64xx.c +++ b/drivers/clk/samsung/clk-s3c64xx.c @@ -471,8 +471,6 @@ void __init s3c64xx_clk_init(struct device_node *np, unsigned long xtal_f, } ctx = samsung_clk_init(np, reg_base, NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); /* Register external clocks. */ if (!np) diff --git a/drivers/clk/samsung/clk-s5pv210.c b/drivers/clk/samsung/clk-s5pv210.c index 52302262045d..fd2725710a6f 100644 --- a/drivers/clk/samsung/clk-s5pv210.c +++ b/drivers/clk/samsung/clk-s5pv210.c @@ -784,8 +784,6 @@ static void __init __s5pv210_clk_init(struct device_node *np, struct samsung_clk_provider *ctx; ctx = samsung_clk_init(np, reg_base, NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); samsung_clk_register_mux(ctx, early_mux_clks, ARRAY_SIZE(early_mux_clks)); -- 2.5.0 From mboxrd@z Thu Jan 1 00:00:00 1970 From: krzk@kernel.org (Krzysztof Kozlowski) Date: Mon, 9 May 2016 19:32:31 +0200 Subject: [PATCH v2] clk: samsung: Remove useless check for return value of samsung_clk_init Message-ID: <1462815151-14396-1-git-send-email-krzk@kernel.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The samsung_clk_init() cannot return NULL. Either it returns allocated memory or it panics. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Javier Martinez Canillas --- Changes since v1: 1. Remove the check from most of other Samsung clock drivers (suggested by Javier). --- drivers/clk/samsung/clk-exynos4.c | 2 -- drivers/clk/samsung/clk-exynos5250.c | 3 +-- drivers/clk/samsung/clk-exynos5420.c | 2 -- drivers/clk/samsung/clk-exynos5440.c | 2 -- drivers/clk/samsung/clk-s3c2410.c | 2 -- drivers/clk/samsung/clk-s3c2412.c | 2 -- drivers/clk/samsung/clk-s3c2443.c | 2 -- drivers/clk/samsung/clk-s3c64xx.c | 2 -- drivers/clk/samsung/clk-s5pv210.c | 2 -- 9 files changed, 1 insertion(+), 18 deletions(-) diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c index 7b3d0f975987..2f458233908b 100644 --- a/drivers/clk/samsung/clk-exynos4.c +++ b/drivers/clk/samsung/clk-exynos4.c @@ -1450,8 +1450,6 @@ static void __init exynos4_clk_init(struct device_node *np, panic("%s: failed to map registers\n", __func__); ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); samsung_clk_of_register_fixed_ext(ctx, exynos4_fixed_rate_ext_clks, ARRAY_SIZE(exynos4_fixed_rate_ext_clks), diff --git a/drivers/clk/samsung/clk-exynos5250.c b/drivers/clk/samsung/clk-exynos5250.c index 837197db4ffb..d8621cf31786 100644 --- a/drivers/clk/samsung/clk-exynos5250.c +++ b/drivers/clk/samsung/clk-exynos5250.c @@ -805,8 +805,7 @@ static void __init exynos5250_clk_init(struct device_node *np) } ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); + samsung_clk_of_register_fixed_ext(ctx, exynos5250_fixed_rate_ext_clks, ARRAY_SIZE(exynos5250_fixed_rate_ext_clks), ext_clk_match); diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c index 92382cef9f90..770c0f007c6b 100644 --- a/drivers/clk/samsung/clk-exynos5420.c +++ b/drivers/clk/samsung/clk-exynos5420.c @@ -1356,8 +1356,6 @@ static void __init exynos5x_clk_init(struct device_node *np, exynos5x_soc = soc; ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); samsung_clk_of_register_fixed_ext(ctx, exynos5x_fixed_rate_ext_clks, ARRAY_SIZE(exynos5x_fixed_rate_ext_clks), diff --git a/drivers/clk/samsung/clk-exynos5440.c b/drivers/clk/samsung/clk-exynos5440.c index c57cff1e1798..22c73d4a5ee3 100644 --- a/drivers/clk/samsung/clk-exynos5440.c +++ b/drivers/clk/samsung/clk-exynos5440.c @@ -125,8 +125,6 @@ static void __init exynos5440_clk_init(struct device_node *np) } ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); samsung_clk_of_register_fixed_ext(ctx, exynos5440_fixed_rate_ext_clks, ARRAY_SIZE(exynos5440_fixed_rate_ext_clks), ext_clk_match); diff --git a/drivers/clk/samsung/clk-s3c2410.c b/drivers/clk/samsung/clk-s3c2410.c index d7b011c1fcf8..d7a1e772d95a 100644 --- a/drivers/clk/samsung/clk-s3c2410.c +++ b/drivers/clk/samsung/clk-s3c2410.c @@ -374,8 +374,6 @@ void __init s3c2410_common_clk_init(struct device_node *np, unsigned long xti_f, } ctx = samsung_clk_init(np, reg_base, NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); /* Register external clocks only in non-dt cases */ if (!np) diff --git a/drivers/clk/samsung/clk-s3c2412.c b/drivers/clk/samsung/clk-s3c2412.c index effe3736ec6b..ec873ee15d37 100644 --- a/drivers/clk/samsung/clk-s3c2412.c +++ b/drivers/clk/samsung/clk-s3c2412.c @@ -265,8 +265,6 @@ void __init s3c2412_common_clk_init(struct device_node *np, unsigned long xti_f, } ctx = samsung_clk_init(np, reg_base, NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); /* Register external clocks only in non-dt cases */ if (!np) diff --git a/drivers/clk/samsung/clk-s3c2443.c b/drivers/clk/samsung/clk-s3c2443.c index 37562783b25e..5e24a17e10e6 100644 --- a/drivers/clk/samsung/clk-s3c2443.c +++ b/drivers/clk/samsung/clk-s3c2443.c @@ -400,8 +400,6 @@ void __init s3c2443_common_clk_init(struct device_node *np, unsigned long xti_f, } ctx = samsung_clk_init(np, reg_base, NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); /* Register external clocks only in non-dt cases */ if (!np) diff --git a/drivers/clk/samsung/clk-s3c64xx.c b/drivers/clk/samsung/clk-s3c64xx.c index 60aa775bd374..a48bd5f17330 100644 --- a/drivers/clk/samsung/clk-s3c64xx.c +++ b/drivers/clk/samsung/clk-s3c64xx.c @@ -471,8 +471,6 @@ void __init s3c64xx_clk_init(struct device_node *np, unsigned long xtal_f, } ctx = samsung_clk_init(np, reg_base, NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); /* Register external clocks. */ if (!np) diff --git a/drivers/clk/samsung/clk-s5pv210.c b/drivers/clk/samsung/clk-s5pv210.c index 52302262045d..fd2725710a6f 100644 --- a/drivers/clk/samsung/clk-s5pv210.c +++ b/drivers/clk/samsung/clk-s5pv210.c @@ -784,8 +784,6 @@ static void __init __s5pv210_clk_init(struct device_node *np, struct samsung_clk_provider *ctx; ctx = samsung_clk_init(np, reg_base, NR_CLKS); - if (!ctx) - panic("%s: unable to allocate context.\n", __func__); samsung_clk_register_mux(ctx, early_mux_clks, ARRAY_SIZE(early_mux_clks)); -- 2.5.0