From 9be29369598543ff1d4800c2591640bc11ef2197 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Tue, 24 Feb 2015 07:39:49 -0300 Subject: [PATCH] [media] media: omap3isp: video: Don't call vb2 mmap with queue lock held videobuf2 has long been subject to AB-BA style deadlocks due to the queue lock and mmap_sem being taken in different orders for the mmap operation. The problem has been fixed by making this operation callable without taking the queue lock, using an mmap_lock internal to videobuf2. The omap3isp driver still calls the mmap operation with the queue lock held, resulting in a potential deadlock. As the operation can now be called without locking the queue, fix it. Signed-off-by: Laurent Pinchart Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- Reading git-format-patch failed