From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>, yu kuai <yukuai3@huawei.com>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 4.9 8/9] ARM: at91: pm: add missing put_device() call in at91_pm_sram_init()
Date: Sat, 8 Aug 2020 19:40:35 -0400 [thread overview]
Message-ID: <20200808234037.3619732-8-sashal@kernel.org> (raw)
In-Reply-To: <20200808234037.3619732-1-sashal@kernel.org>
From: yu kuai <yukuai3@huawei.com>
[ Upstream commit f87a4f022c44e5b87e842a9f3e644fba87e8385f ]
if of_find_device_by_node() succeed, at91_pm_sram_init() doesn't have
a corresponding put_device(). Thus add a jump target to fix the exception
handling for this function implementation.
Fixes: d2e467905596 ("ARM: at91: pm: use the mmio-sram pool to access SRAM")
Signed-off-by: yu kuai <yukuai3@huawei.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20200604123301.3905837-1-yukuai3@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/mach-at91/pm.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 8ba0e2e5ad97c..0efac1404418e 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -411,13 +411,13 @@ static void __init at91_pm_sram_init(void)
sram_pool = gen_pool_get(&pdev->dev, NULL);
if (!sram_pool) {
pr_warn("%s: sram pool unavailable!\n", __func__);
- return;
+ goto out_put_device;
}
sram_base = gen_pool_alloc(sram_pool, at91_pm_suspend_in_sram_sz);
if (!sram_base) {
pr_warn("%s: unable to alloc sram!\n", __func__);
- return;
+ goto out_put_device;
}
sram_pbase = gen_pool_virt_to_phys(sram_pool, sram_base);
@@ -425,12 +425,17 @@ static void __init at91_pm_sram_init(void)
at91_pm_suspend_in_sram_sz, false);
if (!at91_suspend_sram_fn) {
pr_warn("SRAM: Could not map\n");
- return;
+ goto out_put_device;
}
/* Copy the pm suspend handler to SRAM */
at91_suspend_sram_fn = fncpy(at91_suspend_sram_fn,
&at91_pm_suspend_in_sram, at91_pm_suspend_in_sram_sz);
+ return;
+
+out_put_device:
+ put_device(&pdev->dev);
+ return;
}
static const struct of_device_id atmel_pmc_ids[] __initconst = {
--
2.25.1
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next prev parent reply other threads:[~2020-08-09 0:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200808234037.3619732-1-sashal@kernel.org>
2020-08-08 23:40 ` [PATCH AUTOSEL 4.9 3/9] arm64: dts: exynos: Fix silent hang after boot on Espresso Sasha Levin
2020-08-08 23:40 ` Sasha Levin [this message]
2020-08-08 23:40 ` [PATCH AUTOSEL 4.9 9/9] ARM: socfpga: PM: add missing put_device() call in socfpga_setup_ocram_self_refresh() Sasha Levin
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