6.6-stable review patch. If anyone has any objections, please let me know.
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From: Prateek Agarwal praagarwal@nvidia.com
[ Upstream commit 6cbab9f0da72b4dc3c3f9161197aa3b9daa1fa3a ]
Add a call to put_pid() corresponding to get_task_pid(). host1x_memory_context_alloc() does not take ownership of the PID so we need to free it here to avoid leaking.
Signed-off-by: Prateek Agarwal praagarwal@nvidia.com Fixes: e09db97889ec ("drm/tegra: Support context isolation") [mperttunen@nvidia.com: reword commit message] Signed-off-by: Mikko Perttunen mperttunen@nvidia.com Signed-off-by: Thierry Reding treding@nvidia.com Link: https://patch.msgid.link/20250919-host1x-put-pid-v1-1-19c2163dfa87@nvidia.co... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/tegra/uapi.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/tegra/uapi.c b/drivers/gpu/drm/tegra/uapi.c index 5adab6b229164..d0b6a1fa6efad 100644 --- a/drivers/gpu/drm/tegra/uapi.c +++ b/drivers/gpu/drm/tegra/uapi.c @@ -114,9 +114,12 @@ int tegra_drm_ioctl_channel_open(struct drm_device *drm, void *data, struct drm_ if (err) goto put_channel;
- if (supported) + if (supported) { + struct pid *pid = get_task_pid(current, PIDTYPE_TGID); context->memory_context = host1x_memory_context_alloc( - host, client->base.dev, get_task_pid(current, PIDTYPE_TGID)); + host, client->base.dev, pid); + put_pid(pid); + }
if (IS_ERR(context->memory_context)) { if (PTR_ERR(context->memory_context) != -EOPNOTSUPP) {