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| author | Peng Hao <peng.hao2@zte.com.cn> | 2019-04-02 22:12:38 +0800 |
|---|---|---|
| committer | Ludovic Desroches <ludovic.desroches@microchip.com> | 2019-04-04 12:00:24 +0200 |
| commit | ba5e60c9b75dec92d4c695b928f69300b17d7686 (patch) | |
| tree | f6c605edc18d608a720942ded108f7a7c8a0f0f4 /arch/arm/mach-at91 | |
| parent | e7dfb6d04e4715be1f3eb2c60d97b753fd2e4516 (diff) | |
| download | linux-ba5e60c9b75dec92d4c695b928f69300b17d7686.tar.gz | |
arm/mach-at91/pm : fix possible object reference leak
of_find_device_by_node() takes a reference to the struct device when it finds a match via get_device. When returning error we should call put_device. Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: Peng Hao <peng.hao2@zte.com.cn> Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Diffstat (limited to 'arch/arm/mach-at91')
| -rw-r--r-- | arch/arm/mach-at91/pm.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index 51e808adb00c..2a757dcaa1a5 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -591,13 +591,13 @@ static int __init at91_pm_backup_init(void) np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-securam"); if (!np) - goto securam_fail; + goto securam_fail_no_ref_dev; pdev = of_find_device_by_node(np); of_node_put(np); if (!pdev) { pr_warn("%s: failed to find securam device!\n", __func__); - goto securam_fail; + goto securam_fail_no_ref_dev; } sram_pool = gen_pool_get(&pdev->dev, NULL); @@ -620,6 +620,8 @@ static int __init at91_pm_backup_init(void) return 0; securam_fail: + put_device(&pdev->dev); +securam_fail_no_ref_dev: iounmap(pm_data.sfrbu); pm_data.sfrbu = NULL; return ret; |