Messages in this thread | | | Subject | Re: [PATCH v3] arm/mach-at91/pm : fix possible object reference leak | From | Mukesh Ojha <> | Date | Mon, 1 Apr 2019 14:21:33 +0530 |
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On 4/1/2019 9:56 PM, Peng Hao wrote: > 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. > > Signed-off-by: Peng Hao <peng.hao2@zte.com.cn> > --- > arch/arm/mach-at91/pm.c | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c > index 51e808a..38511a5 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_get;
s/securam_fail_no_get/securam_fail_no_ref_dev
otherwise looks good. Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Cheers, -Mukesh
> > 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_get; > } > > 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_get: > iounmap(pm_data.sfrbu); > pm_data.sfrbu = NULL; > return ret;
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