From: Quentin Schulz quentin.schulz@cherry.de
When rocket_job_init() is called, iommu_group_get() has already been called, therefore we should call iommu_group_put() and make the iommu_group pointer NULL. This aligns with what's done in rocket_core_fini().
If pm_runtime_resume_and_get() somehow fails, not only should rocket_job_fini() be called but we should also unwind everything done before that, that is, disable PM, put the iommu_group, NULLify it and then call rocket_job_fini(). This is exactly what's done in rocket_core_fini() so let's call that function instead of duplicating the code.
Fixes: 0810d5ad88a1 ("accel/rocket: Add job submission IOCTL") Cc: stable@vger.kernel.org Signed-off-by: Quentin Schulz quentin.schulz@cherry.de --- drivers/accel/rocket/rocket_core.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/accel/rocket/rocket_core.c b/drivers/accel/rocket/rocket_core.c index abe7719c1db46..b3b2fa9ba645a 100644 --- a/drivers/accel/rocket/rocket_core.c +++ b/drivers/accel/rocket/rocket_core.c @@ -59,8 +59,11 @@ int rocket_core_init(struct rocket_core *core) core->iommu_group = iommu_group_get(dev);
err = rocket_job_init(core); - if (err) + if (err) { + iommu_group_put(core->iommu_group); + core->iommu_group = NULL; return err; + }
pm_runtime_use_autosuspend(dev);
@@ -76,7 +79,7 @@ int rocket_core_init(struct rocket_core *core)
err = pm_runtime_resume_and_get(dev); if (err) { - rocket_job_fini(core); + rocket_core_fini(core); return err; }