drm: fix mutex leak in drm_dp_get_mst_branch_device

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In Linux 4.3-rc5, there is an error case in drm_dp_get_branch_device
that returns without releasing mgr->lock, resulting a spew of kernel
messages about a kernel work function possibly having leaked a mutex
and presumably more serious adverse consequences later.  This patch
changes the error to "goto out" to unlock the mutex before returning.

Signed-off-by: Adam J. Richter <adam_richter2004@yahoo.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Adam Richter 2015-10-16 03:33:02 -07:00 • committed by Daniel Vetter

parent 2afa701d3e

commit 6749c9f023

1 changed files with 4 additions and 3 deletions

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7

drivers/gpu/drm/drm_dp_mst_topology.c

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