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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2019-03-18 21:47:09 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-04-20 09:16:56 +0200
commit66495ebfd4dff8434b494193e78aeeeba0c5c358 (patch)
tree514356628522c9071a746d667cfe0bf00b432298
parentfd9f338db8679c4d053c2f73a0863d7309801689 (diff)
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ACPI / utils: Drop reference in test for device presence
[ Upstream commit 54e3aca84e571559915998aa6cc05e5ac37c043b ] When commit 8661423eea1a ("ACPI / utils: Add new acpi_dev_present helper") introduced acpi_dev_present(), it missed the fact that bus_find_device() took a reference on the device found by it and the callers of acpi_dev_present() don't drop that reference. Drop the reference on the device in acpi_dev_present(). Fixes: 8661423eea1a ("ACPI / utils: Add new acpi_dev_present helper") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--drivers/acpi/utils.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index 78db97687f26..c4b06cc075f9 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -800,6 +800,7 @@ bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
match.hrv = hrv;
dev = bus_find_device(&acpi_bus_type, NULL, &match, acpi_dev_match_cb);
+ put_device(dev);
return !!dev;
}
EXPORT_SYMBOL(acpi_dev_present);