diff options
| author | Tomi Valkeinen <[email protected]> | 2019-11-14 10:03:43 +0200 |
|---|---|---|
| committer | Tomi Valkeinen <[email protected]> | 2019-12-04 19:11:28 +0200 |
| commit | d9c148cfaf0a99296ad7c92fb8b65952196053ec (patch) | |
| tree | 16c52ad673b2b2c92e08ada351c5d2ea79794e76 /lib/mpi/mpiutil.c | |
| parent | d6d07ca19c045924f2b9cac14cb277cc34f85d43 (diff) | |
drm/omap: fix dma_addr refcounting
cec4fa7511ef7a73eb635834e9d85b25a5b47a98 ("drm/omap: use refcount API to
track the number of users of dma_addr") changed omap_gem.c to use
refcounting API to track dma_addr uses. However, the driver only tracks
the refcounts for non-contiguous buffers, and the patch didn't fully
take this in account.
After the patch, the driver always decreased refcount in omap_gem_unpin,
instead of decreasing the refcount only for non-contiguous buffers. This
leads to refcounting mismatch.
As for the contiguous cases the refcount is never increased, fix this
issue by returning from omap_gem_unpin if the buffer being unpinned is
contiguous.
Signed-off-by: Tomi Valkeinen <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Fixes: cec4fa7511ef ("drm/omap: use refcount API to track the number of users of dma_addr")
Reviewed-by: Laurent Pinchart <[email protected]>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions