* [PATCH AUTOSEL 4.4 4/5] ARM: at91: pm: add missing put_device() call in at91_pm_sram_init()
[not found] <20200808234054.3619873-1-sashal@kernel.org>
@ 2020-08-08 23:40 ` Sasha Levin
2020-08-08 23:40 ` [PATCH AUTOSEL 4.4 5/5] ARM: socfpga: PM: add missing put_device() call in socfpga_setup_ocram_self_refresh() Sasha Levin
1 sibling, 0 replies; 2+ messages in thread
From: Sasha Levin @ 2020-08-08 23:40 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Sasha Levin, yu kuai, Alexandre Belloni, linux-arm-kernel
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 84eefbc2b4f93..5923f2ca510be 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -393,13 +393,13 @@ 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);
@@ -407,12 +407,17 @@ 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 void __init at91_pm_init(void)
--
2.25.1
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH AUTOSEL 4.4 5/5] ARM: socfpga: PM: add missing put_device() call in socfpga_setup_ocram_self_refresh()
[not found] <20200808234054.3619873-1-sashal@kernel.org>
2020-08-08 23:40 ` [PATCH AUTOSEL 4.4 4/5] ARM: at91: pm: add missing put_device() call in at91_pm_sram_init() Sasha Levin
@ 2020-08-08 23:40 ` Sasha Levin
1 sibling, 0 replies; 2+ messages in thread
From: Sasha Levin @ 2020-08-08 23:40 UTC (permalink / raw)
To: linux-kernel, stable; +Cc: Sasha Levin, Yu Kuai, linux-arm-kernel, Dinh Nguyen
From: Yu Kuai <yukuai3@huawei.com>
[ Upstream commit 3ad7b4e8f89d6bcc9887ca701cf2745a6aedb1a0 ]
if of_find_device_by_node() succeed, socfpga_setup_ocram_self_refresh
doesn't have a corresponding put_device(). Thus add a jump target to
fix the exception handling for this function implementation.
Fixes: 44fd8c7d4005 ("ARM: socfpga: support suspend to ram")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/mach-socfpga/pm.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-socfpga/pm.c b/arch/arm/mach-socfpga/pm.c
index c378ab0c24317..93f2245c97750 100644
--- a/arch/arm/mach-socfpga/pm.c
+++ b/arch/arm/mach-socfpga/pm.c
@@ -60,14 +60,14 @@ static int socfpga_setup_ocram_self_refresh(void)
if (!ocram_pool) {
pr_warn("%s: ocram pool unavailable!\n", __func__);
ret = -ENODEV;
- goto put_node;
+ goto put_device;
}
ocram_base = gen_pool_alloc(ocram_pool, socfpga_sdram_self_refresh_sz);
if (!ocram_base) {
pr_warn("%s: unable to alloc ocram!\n", __func__);
ret = -ENOMEM;
- goto put_node;
+ goto put_device;
}
ocram_pbase = gen_pool_virt_to_phys(ocram_pool, ocram_base);
@@ -78,7 +78,7 @@ static int socfpga_setup_ocram_self_refresh(void)
if (!suspend_ocram_base) {
pr_warn("%s: __arm_ioremap_exec failed!\n", __func__);
ret = -ENOMEM;
- goto put_node;
+ goto put_device;
}
/* Copy the code that puts DDR in self refresh to ocram */
@@ -92,6 +92,8 @@ static int socfpga_setup_ocram_self_refresh(void)
if (!socfpga_sdram_self_refresh_in_ocram)
ret = -EFAULT;
+put_device:
+ put_device(&pdev->dev);
put_node:
of_node_put(np);
--
2.25.1
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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2020-08-08 23:40 ` [PATCH AUTOSEL 4.4 4/5] ARM: at91: pm: add missing put_device() call in at91_pm_sram_init() Sasha Levin
2020-08-08 23:40 ` [PATCH AUTOSEL 4.4 5/5] ARM: socfpga: PM: add missing put_device() call in socfpga_setup_ocram_self_refresh() Sasha Levin
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