summary refs log tree commit diff
path: root/drivers/soc
diff options
context:
space:
mode:
authorArnd Bergmann <arnd@arndb.de>2019-09-04 22:32:30 +0200
committerArnd Bergmann <arnd@arndb.de>2019-09-04 22:32:30 +0200
commitb8580b283197cf6c355b0ccc8128777dcf8375d4 (patch)
tree438cdccdd63060b0721535ca61a746a5db133f7f /drivers/soc
parentde8a618f30e8436b8b6f344604225990325fef91 (diff)
parent28578825ede61834a2c46e7f9a89012c4c7a667f (diff)
downloadlinux-b8580b283197cf6c355b0ccc8128777dcf8375d4.tar.gz
Merge tag 'samsung-drivers-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/drivers
Samsung soc drivers changes for v5.4, part 2

Fixes and cleanups for recently introduced Exynos chipid driver.

* tag 'samsung-drivers-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  soc: samsung: chipid: Select missing dependency for EXYNOS_CHIPID
  soc: samsung: chipid: Remove the regmap lookup error log
  soc: samsung: chipid: Fix memory leak in error path

Link: https://lore.kernel.org/r/20190904175002.10487-3-krzk@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/soc')
-rw-r--r--drivers/soc/samsung/Kconfig1
-rw-r--r--drivers/soc/samsung/exynos-chipid.c18
2 files changed, 12 insertions, 7 deletions
diff --git a/drivers/soc/samsung/Kconfig b/drivers/soc/samsung/Kconfig
index 2905f5262197..33ad0de2de3c 100644
--- a/drivers/soc/samsung/Kconfig
+++ b/drivers/soc/samsung/Kconfig
@@ -10,6 +10,7 @@ if SOC_SAMSUNG
 config EXYNOS_CHIPID
 	bool "Exynos Chipid controller driver" if COMPILE_TEST
 	depends on ARCH_EXYNOS || COMPILE_TEST
+	select MFD_SYSCON
 	select SOC_BUS
 
 config EXYNOS_PMU
diff --git a/drivers/soc/samsung/exynos-chipid.c b/drivers/soc/samsung/exynos-chipid.c
index 006a95feb618..c55a47cfe617 100644
--- a/drivers/soc/samsung/exynos-chipid.c
+++ b/drivers/soc/samsung/exynos-chipid.c
@@ -56,10 +56,8 @@ int __init exynos_chipid_early_init(void)
 	int ret;
 
 	regmap = syscon_regmap_lookup_by_compatible("samsung,exynos4210-chipid");
-	if (IS_ERR(regmap)) {
-		pr_err("Failed to get CHIPID regmap\n");
+	if (IS_ERR(regmap))
 		return PTR_ERR(regmap);
-	}
 
 	ret = regmap_read(regmap, EXYNOS_CHIPID_REG_PRO_ID, &product_id);
 	if (ret < 0)
@@ -81,15 +79,15 @@ int __init exynos_chipid_early_init(void)
 	soc_dev_attr->soc_id = product_id_to_soc_id(product_id);
 	if (!soc_dev_attr->soc_id) {
 		pr_err("Unknown SoC\n");
-		return -ENODEV;
+		ret = -ENODEV;
+		goto err;
 	}
 
 	/* please note that the actual registration will be deferred */
 	soc_dev = soc_device_register(soc_dev_attr);
 	if (IS_ERR(soc_dev)) {
-		kfree(soc_dev_attr->revision);
-		kfree(soc_dev_attr);
-		return PTR_ERR(soc_dev);
+		ret = PTR_ERR(soc_dev);
+		goto err;
 	}
 
 	/* it is too early to use dev_info() here (soc_dev is NULL) */
@@ -97,5 +95,11 @@ int __init exynos_chipid_early_init(void)
 		soc_dev_attr->soc_id, product_id, revision);
 
 	return 0;
+
+err:
+	kfree(soc_dev_attr->revision);
+	kfree(soc_dev_attr);
+	return ret;
 }
+
 early_initcall(exynos_chipid_early_init);