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authorJon Hunter <jonathanh@nvidia.com>2015-12-04 14:57:05 +0000
committerThierry Reding <treding@nvidia.com>2016-04-05 15:22:40 +0200
commit3195ac6d9cbeef23631913d67f8c1e76b891da4d (patch)
tree32adbe2e5c6dbd7f54b95b675c8a6bf0a03e43a7 /drivers/soc
parent1e52efdfc6a29f9bad767b92b89ae6ae772063cc (diff)
downloadop-kernel-dev-3195ac6d9cbeef23631913d67f8c1e76b891da4d.zip
op-kernel-dev-3195ac6d9cbeef23631913d67f8c1e76b891da4d.tar.gz
soc/tegra: pmc: Remove debugfs entry on probe failure
The debugfs entry for the PMC device will not be removed if the probe of the device fails to register the restart handler. This leaves behind the dangling debugfs entry with no driver backing it. Remove the entry to avoid this. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/soc')
-rw-r--r--drivers/soc/tegra/pmc.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 5b6125e..e60fc2d 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -117,6 +117,7 @@ struct tegra_pmc_soc {
* @base: pointer to I/O remapped register region
* @clk: pointer to pclk clock
* @soc: pointer to SoC data structure
+ * @debugfs: pointer to debugfs entry
* @rate: currently configured rate of pclk
* @suspend_mode: lowest suspend mode available
* @cpu_good_time: CPU power good time (in microseconds)
@@ -136,6 +137,7 @@ struct tegra_pmc {
struct device *dev;
void __iomem *base;
struct clk *clk;
+ struct dentry *debugfs;
const struct tegra_pmc_soc *soc;
@@ -447,11 +449,9 @@ static const struct file_operations powergate_fops = {
static int tegra_powergate_debugfs_init(void)
{
- struct dentry *d;
-
- d = debugfs_create_file("powergate", S_IRUGO, NULL, NULL,
- &powergate_fops);
- if (!d)
+ pmc->debugfs = debugfs_create_file("powergate", S_IRUGO, NULL, NULL,
+ &powergate_fops);
+ if (!pmc->debugfs)
return -ENOMEM;
return 0;
@@ -844,6 +844,7 @@ static int tegra_pmc_probe(struct platform_device *pdev)
err = register_restart_handler(&tegra_pmc_restart_handler);
if (err) {
+ debugfs_remove(pmc->debugfs);
dev_err(&pdev->dev, "unable to register restart handler, %d\n",
err);
return err;
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