From: Ben Hutchings <ben@decadent.org.uk>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: akpm@linux-foundation.org,
"Seung-Woo Kim" <sw0312.kim@samsung.com>,
"Mark Brown" <broonie@kernel.org>
Subject: [PATCH 3.16 4/7] regulator: core: Fix regualtor_ena_gpio_free not to access pin after freeing
Date: Tue, 27 Jun 2017 12:10:34 +0100 [thread overview]
Message-ID: <lsq.1498561834.500626615@decadent.org.uk> (raw)
In-Reply-To: <lsq.1498561833.742501160@decadent.org.uk>
3.16.45-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Seung-Woo Kim <sw0312.kim@samsung.com>
commit 60a2362f769cf549dc466134efe71c8bf9fbaaba upstream.
After freeing pin from regulator_ena_gpio_free, loop can access
the pin. So this patch fixes not to access pin after freeing.
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/regulator/core.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1709,6 +1709,8 @@ static void regulator_ena_gpio_free(stru
gpio_free(pin->gpio);
list_del(&pin->list);
kfree(pin);
+ rdev->ena_pin = NULL;
+ return;
} else {
pin->request_count--;
}
next prev parent reply other threads:[~2017-06-27 11:13 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-27 11:10 [PATCH 3.16 0/7] 3.16.45-rc1 review Ben Hutchings
2017-06-27 11:10 ` [PATCH 3.16 5/7] drm/vmwgfx: limit the number of mip levels in vmw_gb_surface_define_ioctl() Ben Hutchings
2017-06-27 11:10 ` Ben Hutchings [this message]
2017-06-27 11:10 ` [PATCH 3.16 3/7] Allow stack to grow up to address space limit Ben Hutchings
2017-06-27 11:10 ` [PATCH 3.16 7/7] KVM: x86: fix singlestepping over syscall Ben Hutchings
2017-06-27 11:10 ` [PATCH 3.16 6/7] rxrpc: Fix several cases where a padded len isn't checked in ticket decode Ben Hutchings
2017-06-27 11:10 ` [PATCH 3.16 1/7] mm: larger stack guard gap, between vmas Ben Hutchings
2017-06-27 11:10 ` [PATCH 3.16 2/7] mm: fix new crash in unmapped_area_topdown() Ben Hutchings
2017-06-27 13:37 ` [PATCH 3.16 0/7] 3.16.45-rc1 review Guenter Roeck
2017-06-27 17:15 ` Ben Hutchings
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