From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
Fix the error handling in function cirrus_device_init() to avoid resources
leak in the error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/cirrus/cirrus_main.c | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/cirrus/cirrus_main.c b/drivers/gpu/drm/cirrus/cirrus_main.c
index 3a7a0ef..5f59bb0 100644
--- a/drivers/gpu/drm/cirrus/cirrus_main.c
+++ b/drivers/gpu/drm/cirrus/cirrus_main.c
@@ -138,17 +138,22 @@ int cirrus_device_init(struct cirrus_device *cdev,
}
cdev->rmmio = ioremap(cdev->rmmio_base, cdev->rmmio_size);
-
- if (cdev->rmmio == NULL)
- return -ENOMEM;
+ if (cdev->rmmio == NULL) {
+ ret = -ENOMEM;
+ goto err_ioremap;
+ }
ret = cirrus_vram_init(cdev);
- if (ret) {
- release_mem_region(cdev->rmmio_base, cdev->rmmio_size);
- return ret;
- }
+ if (ret)
+ goto err_init;
return 0;
+
+err_init:
+ iounmap(cdev->rmmio);
+err_ioremap:
+ release_mem_region(cdev->rmmio_base, cdev->rmmio_size);
+ return ret;
}
void cirrus_device_fini(struct cirrus_device *cdev)
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