Re: [PATCH] video: fbdev: Fix an errro handling path in 'au1200fb_drv_probe()'

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Le 12/10/2017 à 18:25, Bartlomiej Zolnierkiewicz a écrit :
[ added dri-devel ML to cc: ]

On Tuesday, September 12, 2017 07:39:30 AM Christophe JAILLET wrote:
If 'dmam_alloc_attrs()' fails, we must go through the error handling code,
as done elsewhere in this function. Otherwise, there is a resource leak.

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
I'm also puzzled by the 'framebuffer_alloc()' call a few lines above.
'ret' is known to be 0 at this point. I guess that -ENOMEM should also be
returned.
Yes, moreover the "failed:" error path is incomplete (please take
a look at au1200fb_drv_remove() for comparison) and needs to be fixed.

Could you please take care of it?

I will try, but be indulgent :)

My understanding of the code is that they are several issues all related to this error handling path (double free, missing memory release, invalid irq release...) I will try to sort it out, but my first tries will likely be incomplete and/or broken.

CJ
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