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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
	linux-fbdev@vger.kernel.org,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	YueHaibing <yuehaibing@huawei.com>,
	dri-devel@lists.freedesktop.org, Lubomir Rintel <lkundrak@v3.sk>,
	Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH AUTOSEL 4.19 014/252] pxa168fb: Fix the function used to release some memory in an error handling path
Date: Fri, 14 Feb 2020 11:07:49 -0500
Message-ID: <20200214161147.15842-14-sashal@kernel.org> (raw)
In-Reply-To: <20200214161147.15842-1-sashal@kernel.org>

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 3c911fe799d1c338d94b78e7182ad452c37af897 ]

In the probe function, some resources are allocated using 'dma_alloc_wc()',
they should be released with 'dma_free_wc()', not 'dma_free_coherent()'.

We already use 'dma_free_wc()' in the remove function, but not in the
error handling path of the probe function.

Also, remove a useless 'PAGE_ALIGN()'. 'info->fix.smem_len' is already
PAGE_ALIGNed.

Fixes: 638772c7553f ("fb: add support of LCD display controller on pxa168/910 (base layer)")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Lubomir Rintel <lkundrak@v3.sk>
CC: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190831100024.3248-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/fbdev/pxa168fb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/fbdev/pxa168fb.c b/drivers/video/fbdev/pxa168fb.c
index d059d04c63acd..20195d3dbf088 100644
--- a/drivers/video/fbdev/pxa168fb.c
+++ b/drivers/video/fbdev/pxa168fb.c
@@ -769,8 +769,8 @@ static int pxa168fb_probe(struct platform_device *pdev)
 failed_free_clk:
 	clk_disable_unprepare(fbi->clk);
 failed_free_fbmem:
-	dma_free_coherent(fbi->dev, info->fix.smem_len,
-			info->screen_base, fbi->fb_start_dma);
+	dma_free_wc(fbi->dev, info->fix.smem_len,
+		    info->screen_base, fbi->fb_start_dma);
 failed_free_info:
 	kfree(info);
 
@@ -804,7 +804,7 @@ static int pxa168fb_remove(struct platform_device *pdev)
 
 	irq = platform_get_irq(pdev, 0);
 
-	dma_free_wc(fbi->dev, PAGE_ALIGN(info->fix.smem_len),
+	dma_free_wc(fbi->dev, info->fix.smem_len,
 		    info->screen_base, info->fix.smem_start);
 
 	clk_disable_unprepare(fbi->clk);
-- 
2.20.1

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  parent reply index

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-14 16:07 [PATCH AUTOSEL 4.19 001/252] drm/amdgpu: remove set but not used variable 'mc_shared_chmap' from 'gfx_v6_0.c' and 'gfx_v7_0.c' Sasha Levin
2020-02-14 16:07 ` [PATCH AUTOSEL 4.19 002/252] drm/gma500: Fixup fbdev stolen size usage evaluation Sasha Levin
2020-02-14 16:07 ` Sasha Levin [this message]
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 049/252] drm/amd/display: Retrain dongles when SINK_COUNT becomes non-zero Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 054/252] drm/amdgpu: remove 4 set but not used variable in amdgpu_atombios_get_connector_info_from_object_table Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 055/252] drm/amdgpu: remove set but not used variable 'dig_connector' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 056/252] drm/amdgpu: remove set but not used variable 'dig' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 057/252] drm/amdgpu: remove always false comparison in 'amdgpu_atombios_i2c_process_i2c_ch' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 058/252] drm/amdgpu: remove set but not used variable 'mc_shared_chmap' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 059/252] drm/amd/powerplay: remove set but not used variable 'threshold', 'state' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 060/252] drm/amdgpu: remove set but not used variable 'amdgpu_connector' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 061/252] drm/amdgpu: remove set but not used variable 'invalid' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 062/252] drm/amd/powerplay: remove set but not used variable 'us_mvdd' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 063/252] drm/gma500: remove set but not used variable 'htotal' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 064/252] drm/gma500: remove set but not used variable 'error' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 065/252] drm/gma500: remove set but not used variable 'is_hdmi', 'is_crt' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 066/252] drm/gma500: remove set but not used variable 'channel_eq' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 067/252] drm/amd/display: remove set but not used variable 'bp' in bios_parser2.c Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 068/252] drm/amd/display: remove set but not used variable 'bp' in bios_parser.c Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 069/252] drm/radeon: remove set but not used variable 'size', 'relocs_chunk' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 070/252] drm/radeon: remove set but not used variable 'backbias_response_time' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 071/252] drm/radeon: remove set but not used variable 'dig_connector' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 072/252] drm/radeon: remove set but not used variable 'radeon_connector' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 073/252] drm/radeon: remove set but not used variable 'blocks' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 074/252] drm/radeon: remove set but not used variable 'tv_pll_cntl1' Sasha Levin
2020-02-14 16:08 ` [PATCH AUTOSEL 4.19 075/252] drm/amdgpu: Ensure ret is always initialized when using SOC15_WAIT_ON_RREG Sasha Levin
2020-02-14 16:09 ` [PATCH AUTOSEL 4.19 113/252] drm/mediatek: handle events when enabling/disabling crtc Sasha Levin
2020-02-14 16:09 ` [PATCH AUTOSEL 4.19 135/252] drm: remove the newline for CRC source name Sasha Levin
2020-02-14 16:09 ` [PATCH AUTOSEL 4.19 136/252] drm/gma500: remove set but not used variables 'hist_reg' Sasha Levin
2020-02-14 16:10 ` [PATCH AUTOSEL 4.19 168/252] drm/nouveau/secboot/gm20b: initialize pointer in gm20b_secboot_new() Sasha Levin
2020-02-14 16:10 ` [PATCH AUTOSEL 4.19 169/252] drm/nouveau/gr/gk20a, gm200-: add terminators to method lists read from fw Sasha Levin
2020-02-14 16:10 ` [PATCH AUTOSEL 4.19 170/252] drm/nouveau: Fix copy-paste error in nouveau_fence_wait_uevent_handler Sasha Levin
2020-02-14 16:10 ` [PATCH AUTOSEL 4.19 171/252] drm/nouveau/drm/ttm: Remove set but not used variable 'mem' Sasha Levin
2020-02-14 16:10 ` [PATCH AUTOSEL 4.19 172/252] drm/nouveau/fault/gv100-: fix memory leak on module unload Sasha Levin
2020-02-14 16:10 ` [PATCH AUTOSEL 4.19 173/252] drm/vmwgfx: prevent memory leak in vmw_cmdbuf_res_add Sasha Levin
2020-02-14 16:10 ` [PATCH AUTOSEL 4.19 182/252] drm/amd/display: fixup DML dependencies Sasha Levin
2020-02-14 16:11 ` [PATCH AUTOSEL 4.19 208/252] drm/nouveau/mmu: fix comptag memory leak Sasha Levin
2020-02-14 16:11 ` [PATCH AUTOSEL 4.19 232/252] drm/nouveau/disp/nv50-: prevent oops when no channel method map provided Sasha Levin
2020-02-14 16:11 ` [PATCH AUTOSEL 4.19 236/252] radeon: insert 10ms sleep in dce5_crtc_load_lut Sasha Levin
2020-02-14 16:11 ` [PATCH AUTOSEL 4.19 245/252] drm/amdgpu/smu10: fix smu10_get_clock_by_type_with_latency Sasha Levin
2020-02-14 16:11 ` [PATCH AUTOSEL 4.19 246/252] drm/amdgpu/smu10: fix smu10_get_clock_by_type_with_voltage Sasha Levin
2020-02-14 16:49   ` Alex Deucher

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