diff options
| author | Mikko Perttunen <mperttunen@nvidia.com> | 2023-09-01 14:15:07 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2023-10-11 23:52:43 +0300 |
| commit | 9764723de613d93b72e95923d25d589f539f07e9 (patch) | |
| tree | e7b9367c749506b05ac520a45c299737bd7413bb /drivers/gpu/host1x/channel.h | |
| parent | f170bed50f9bbc4b03673f40c91f84d4d0258409 (diff) | |
| download | linux-9764723de613d93b72e95923d25d589f539f07e9.tar.xz | |
gpu: host1x: Add locking in channel allocation
Add locking around channel allocation to avoid race conditions.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230901111510.663401-1-cyndis@kapsi.fi
Diffstat (limited to 'drivers/gpu/host1x/channel.h')
| -rw-r--r-- | drivers/gpu/host1x/channel.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/host1x/channel.h b/drivers/gpu/host1x/channel.h index 39044ff6c3aa..b23a8071fbd0 100644 --- a/drivers/gpu/host1x/channel.h +++ b/drivers/gpu/host1x/channel.h @@ -10,6 +10,7 @@ #include <linux/io.h> #include <linux/kref.h> +#include <linux/mutex.h> #include "cdma.h" @@ -18,6 +19,8 @@ struct host1x_channel; struct host1x_channel_list { struct host1x_channel *channels; + + struct mutex lock; unsigned long *allocated_channels; }; |