blob: ec9b697c73235edb8ed75caf95870a863a0c9d7f [file] [log] [blame]
From 2195d945e62b8c255bf8fc852513a82009b298bc Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Sat, 31 Aug 2019 12:00:24 +0200
Subject: [PATCH] pxa168fb: Fix the function used to release some memory in an
error handling path
commit 3c911fe799d1c338d94b78e7182ad452c37af897 upstream.
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: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/drivers/video/fbdev/pxa168fb.c b/drivers/video/fbdev/pxa168fb.c
index 1410f476e135..1fc50fc0694b 100644
--- a/drivers/video/fbdev/pxa168fb.c
+++ b/drivers/video/fbdev/pxa168fb.c
@@ -766,8 +766,8 @@ 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);
@@ -801,7 +801,7 @@ 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);
--
2.7.4