[PATCH AUTOSEL 4.19 13/73] drm/msm/gpu: Fix a couple memory leaks in debugfs

Sasha Levin
2018-12-13T04:29:12Z

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 51270de91412b819f654b849db3bf92dac0a0855 ]

The msm_gpu_open() function should free "show_priv" on error or it
causes static checker warnings.

Fixes: 4f776f4511c7 ("drm/msm/gpu: Convert the GPU show function to use the GPU state")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/msm/msm_debugfs.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c
index f0da0d3c8a80..d756436c1fcd 100644
--- a/drivers/gpu/drm/msm/msm_debugfs.c
+++ b/drivers/gpu/drm/msm/msm_debugfs.c
@@ -84,7 +84,7 @@ static int msm_gpu_open(struct inode *inode, struct file *file)

ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
- return ret;
+ goto free_priv;

pm_runtime_get_sync(&gpu->pdev->dev);
show_priv->state = gpu->funcs->gpu_state_get(gpu);
@@ -94,13 +94,20 @@ static int msm_gpu_open(struct inode *inode, struct file *file)

if (IS_ERR(show_priv->state)) {
ret = PTR_ERR(show_priv->state);
- kfree(show_priv);
- return ret;
+ goto free_priv;
}

show_priv->dev = dev;

- return single_open(file, msm_gpu_show, show_priv);
+ ret = single_open(file, msm_gpu_show, show_priv);
+ if (ret)
+ goto free_priv;
+
+ return 0;
+
+free_priv:
+ kfree(show_priv);
+ return ret;
}

static const struct file_operations msm_gpu_fops = {
--
2.19.1