We were checking rdev->supply for NULL after dereferencing it. Lets
check for rdev->supply along with _regulator_is_enabled() and call
regulator_enable() only if rdev->supply is not NULL.

Signed-off-by: Sudip Mukherjee <su...@vectorindia.org>
---
 drivers/regulator/core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 7a85ac9..9283d9f 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1422,11 +1422,10 @@ static int regulator_resolve_supply(struct 
regulator_dev *rdev)
                return ret;
 
        /* Cascade always-on state to supply */
-       if (_regulator_is_enabled(rdev)) {
+       if (_regulator_is_enabled(rdev) && rdev->supply) {
                ret = regulator_enable(rdev->supply);
                if (ret < 0) {
-                       if (rdev->supply)
-                               _regulator_put(rdev->supply);
+                       _regulator_put(rdev->supply);
                        return ret;
                }
        }
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to