From: Seung-Woo Kim <sw0312.kim@samsung.com>
Date: Tue, 21 May 2013 02:47:29 +0000 (-0300)
Subject: [media] media: vb2: return for polling if a buffer is available
X-Git-Tag: v3.10-rc7~29^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=412cb87d28a1f299ee82fe1c8bfe6cbeec9a4655;p=pandora-kernel.git

[media] media: vb2: return for polling if a buffer is available

The vb2_poll() does not need to wait next vb_buffer_done() if there is already
a buffer in done_list of queue, but current vb2_poll() always waits.
So done_list is checked before calling poll_wait().

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

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