Re: [PATCH] video: pxafb: Fix the function used to balance a 'dma_alloc_coherent()' call

From
Bartlomiej Zolnierkiewicz <hidden>
Date
2020-06-01 13:25:33
Also in
dri-devel, kernel-janitors, lkml
Reply to
Christophe JAILLET, 2020-04-29
On 4/29/20 10:45 AM, Christophe JAILLET wrote:
'dma_alloc_coherent()' must be balanced by a call to 'dma_free_coherent()'
not 'dma_free_wc()'.
The correct dma_free_ function is already used in the error handling path
of the probe function.

Fixes: 77e196752bdd ("[ARM] pxafb: allow video memory size to be configurable")
Signed-off-by: Christophe JAILLET <redacted>
Applied to drm-misc-next tree (patch should show up in v5.9), thanks.

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
quoted hunk ↗ jump to hunk
---
 drivers/video/fbdev/pxafb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c
index 00b96a78676e..6f972bed410a 100644
--- a/drivers/video/fbdev/pxafb.c
+++ b/drivers/video/fbdev/pxafb.c
@@ -2417,8 +2417,8 @@ static int pxafb_remove(struct platform_device *dev)
 
 	free_pages_exact(fbi->video_mem, fbi->video_mem_size);
 
-	dma_free_wc(&dev->dev, fbi->dma_buff_size, fbi->dma_buff,
-		    fbi->dma_buff_phys);
+	dma_free_coherent(&dev->dev, fbi->dma_buff_size, fbi->dma_buff,
+			  fbi->dma_buff_phys);
 
 	return 0;
 }
Thread (2 messages) 2 messages, 2 authors, last reply 2020-06-01
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