commit 08c45ef934f5e1a7681fd62f4eff3e5f359c8d24
author Sree Sesha Aravind Vadrevu <svadrevu@codeaurora.org> Tue Aug 06 18:08:02 2013 -0700
committer Gerrit - the friendly Code Review server <code-review@localhost> Fri Aug 23 17:06:34 2013 -0700
tree 1424cef2a663ca79d28cdecf13f4b329aedcfbc9
parent 6c44166fc3c7cc704f8ce5b991151540301ee051

msm: mdss: Introduce error checks for rotator sessions

When there are more virtual rotator sessions allocated than
DMA pipes available, rotator pipe allocations might fail and
corresponding error messages are printed which can lead to a
watchdog bark. This change silences those error messages and
also implements an extra check to avoid null pointer
dereference when a session is dequeued without a pipe.

CRs-fixed: 523701
Change-Id: I128ab85aac9e091b13a8772a43342d655c6f736f
Signed-off-by: Sree Sesha Aravind Vadrevu <svadrevu@codeaurora.org>