udlfb: handle allocation failure

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commit 080fb5240b upstream.

Allocations larger than PAGE_ALLOC_COSTLY_ORDER are unreliable and they
may fail anytime. This patch fixes the udlfb driver so that when a large
alloactions fails, it tries to do multiple smaller allocations.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
[bwh: Backported to 3.16:
 - Pointers to struct dlfb_data are named "dev" rather than "dlfb"
 - Adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

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Mikulas Patocka 2018-07-25 15:41:56 +02:00 • committed by Ben Hutchings

parent ae0011e34b

commit e1d6b89941

1 changed files with 17 additions and 9 deletions

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drivers/video/fbdev/udlfb.c

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