[PATCH v2 1/4] power: sequencing: don't call .post_enable() if pwrseq_unit_enable() failed

[Bartosz Golaszewski]

If the call to pwrseq_unit_enable() failed in pwrseq_enable(), bail out
instead of calling target->post_enable() which assumes the target was
successfully enabled.

Fixes: 249ebf3f65f8 ("power: sequencing: implement the pwrseq core")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxxxxxxxx>
---
 drivers/power/sequencing/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/power/sequencing/core.c b/drivers/power/sequencing/core.c
index 0cb71efbb268b351607ccf610cbf0315f35eb3b7..a26615b727f6fe8e7cdc3ab1d3f362ba2f1c5684 100644
--- a/drivers/power/sequencing/core.c
+++ b/drivers/power/sequencing/core.c
@@ -912,6 +912,8 @@ int pwrseq_enable(struct pwrseq_desc *desc)
 		if (!ret)
 			desc->powered_on = true;
 	}
+	if (ret)
+		return ret;
 
 	if (target->post_enable) {
 		ret = target->post_enable(pwrseq);

-- 
2.47.3