diff mbox series

[v4,3/4] platform/x86:intel/pmc: Move error handling to init function

Message ID 20250421211100.687250-4-xi.pardee@linux.intel.com
State New
Headers show
Series [v4,1/4] platform/x86:intel/vsec: Change return type of intel_vsec_register | expand

Commit Message

Xi Pardee April 21, 2025, 9:10 p.m. UTC 
Move error handling code to generic_core_init() function. The previous
implementation is that init function called for "full cleanup" function
when error occurs which is error prone. The init function should handle
the error path itself to improve code maintainability.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
---
 drivers/platform/x86/intel/pmc/core.c | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c
index 042b60c1185f..e09a97564398 100644
--- a/drivers/platform/x86/intel/pmc/core.c
+++ b/drivers/platform/x86/intel/pmc/core.c
@@ -1583,10 +1583,26 @@  int generic_core_init(struct pmc_dev *pmcdev, struct pmc_dev_info *pmc_dev_info)
 	if (pmc_dev_info->dmu_guid)
 		pmc_core_punit_pmt_init(pmcdev, pmc_dev_info->dmu_guid);
 
-	if (ssram)
-		return pmc_core_ssram_get_lpm_reqs(pmcdev, pmc_dev_info->pci_func);
+	if (ssram) {
+		ret = pmc_core_ssram_get_lpm_reqs(pmcdev, pmc_dev_info->pci_func);
+		if (ret)
+			goto unmap_regbase;
+	}
 
 	return 0;
+
+unmap_regbase:
+	for (unsigned int i = 0; i < ARRAY_SIZE(pmcdev->pmcs); ++i) {
+		struct pmc *pmc = pmcdev->pmcs[i];
+
+		if (pmc && pmc->regbase)
+			iounmap(pmc->regbase);
+	}
+
+	if (pmcdev->punit_ep)
+		pmt_telem_unregister_endpoint(pmcdev->punit_ep);
+
+	return ret;
 }
 
 static const struct x86_cpu_id intel_pmc_core_ids[] = {
@@ -1734,7 +1750,8 @@  static int pmc_core_probe(struct platform_device *pdev)
 		ret = generic_core_init(pmcdev, pmc_dev_info);
 
 	if (ret) {
-		pmc_core_clean_structure(pdev);
+		platform_set_drvdata(pdev, NULL);
+		mutex_destroy(&pmcdev->lock);
 		return ret;
 	}