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pxa168fb: Fix the function used to release some memory in an error handling path

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[ Upstream commit 3c911fe799 ]

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: 638772c755 ("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>
This commit is contained in:
Christophe JAILLET 2019-08-31 12:00:24 +02:00 committed by Greg Kroah-Hartman
parent 4a8bb7ce9f
commit 9c76a7b28e
1 changed files with 3 additions and 3 deletions
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6
drivers/video/fbdev/pxa168fb.c
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@ -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);