pthread_mutex_unlock() when unlocked is documented by posix as
being undefined behaviour. On OpenBSD pthread_mutex_unlock() will call
abort(3) if this happens.
This occurs in amdgpu_winsys_create() after
cb446dc0fa5c68f681108f4613560543aa4cf553
winsys/amdgpu: Add amdgpu_screen_winsys
Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Cc: 19.2 19.3 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
(cherry picked from commit
3fe3bde4f2c8813e13fa2992212ca46a894e68b6)
aws = util_hash_table_get(dev_tab, dev);
if (aws) {
pipe_reference(NULL, &aws->reference);
- simple_mtx_unlock(&dev_tab_mutex);
/* Release the device handle, because we don't need it anymore.
* This function is returning an existing winsys instance, which