[PATCH 5.17 0617/1126] gpu: host1x: Fix an error handling path in host1x_probe()

Greg Kroah-Hartman
2022-04-05T08:22:44Z

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit e5d5db1a79a5929b9ced99472f9a748a243d6a69 ]

Add the missing 'host1x_bo_cache_destroy()' call in the error handling
path of the probe, as already done in the remove function.

In order to simplify the error handling, move the 'host1x_bo_cache_init()'
call after all the devm_ function.

Fixes: 1f39b1dfa53c ("drm/tegra: Implement buffer object cache")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/host1x/dev.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index 6994f8c0e02e..9605495f001a 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -447,7 +447,6 @@ static int host1x_probe(struct platform_device *pdev)
if (syncpt_irq < 0)
return syncpt_irq;

- host1x_bo_cache_init(&host->cache);
mutex_init(&host->devices_lock);
INIT_LIST_HEAD(&host->devices);
INIT_LIST_HEAD(&host->list);
@@ -489,10 +488,12 @@ static int host1x_probe(struct platform_device *pdev)
if (err)
return err;

+ host1x_bo_cache_init(&host->cache);
+
err = host1x_iommu_init(host);
if (err < 0) {
dev_err(&pdev->dev, "failed to setup IOMMU: %d\n", err);
- return err;
+ goto destroy_cache;
}

err = host1x_channel_list_init(&host->channel_list,
@@ -553,6 +554,8 @@ static int host1x_probe(struct platform_device *pdev)
host1x_channel_list_free(&host->channel_list);
iommu_exit:
host1x_iommu_exit(host);
+destroy_cache:
+ host1x_bo_cache_destroy(&host->cache);

return err;
}
--
2.34.1