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authorJon Hunter <jonathanh@nvidia.com>2019-04-16 17:48:07 +0100
committerThierry Reding <treding@nvidia.com>2019-04-17 10:32:08 +0200
commita46b51cd2a57d52d5047e1d48240536243eeab34 (patch)
tree2981bd579cea837ccd30aa8544880573b3cbeaa0 /drivers/soc
parent00cdaa1b811f36afa52a5956350c263ded4944a6 (diff)
soc/tegra: pmc: Remove reset sysfs entries on error
Commit 5f84bb1a4099 ("soc/tegra: pmc: Add sysfs entries for reset info") added sysfs entries for Tegra reset source and level. However, these sysfs are not removed on error and so if the registering of PMC device is probe deferred, then the next time we attempt to probe the PMC device warnings such as the following will be displayed on boot ... sysfs: cannot create duplicate filename '/devices/platform/7000e400.pmc/reset_reason' Fix this by calling device_remove_file() for each sysfs entry added on failure. Note that we call device_remove_file() unconditionally without checking if the sysfs entry was created in the first place, but this should be OK because kernfs_remove_by_name_ns() will fail silently. Fixes: 5f84bb1a4099 ("soc/tegra: pmc: Add sysfs entries for reset info") 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.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 7953aa7b11df..741afb141887 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -2040,7 +2040,7 @@ static int tegra_pmc_probe(struct platform_device *pdev)
if (IS_ENABLED(CONFIG_DEBUG_FS)) {
err = tegra_powergate_debugfs_init();
if (err < 0)
- return err;
+ goto cleanup_sysfs;
}
err = register_restart_handler(&tegra_pmc_restart_handler);
@@ -2071,6 +2071,9 @@ cleanup_restart_handler:
unregister_restart_handler(&tegra_pmc_restart_handler);
cleanup_debugfs:
debugfs_remove(pmc->debugfs);
+cleanup_sysfs:
+ device_remove_file(&pdev->dev, &dev_attr_reset_reason);
+ device_remove_file(&pdev->dev, &dev_attr_reset_level);
return err;
}