ACPI: check a return value correctly in acpi_power_get_context()

We should check *resource != NULL rather than resource != NULL, which will be
always true.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 76bf6d90c700..f2a76acecfcd 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -121,7 +121,7 @@ acpi_power_get_context(acpi_handle handle,
         }
 
         *resource = acpi_driver_data(device);
-        if (!resource)
+        if (!*resource)
                 return -ENODEV;
 
         return 0;