[PATCH 4.9 43/45] i2c: qup: Fix error return code in qup_i2c_bam_schedule_desc()

[Greg Kroah-Hartman]

From: Zhihao Cheng <chengzhihao1@xxxxxxxxxx>

commit e9acf0298c664f825e6f1158f2a97341bf9e03ca upstream.

Fix to return the error code from qup_i2c_change_state()
instaed of 0 in qup_i2c_bam_schedule_desc().

Fixes: fbf9921f8b35d9b2 ("i2c: qup: Fix error handling")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Zhihao Cheng <chengzhihao1@xxxxxxxxxx>
Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Signed-off-by: Wolfram Sang <wsa@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/i2c/busses/i2c-qup.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/i2c/busses/i2c-qup.c
+++ b/drivers/i2c/busses/i2c-qup.c
@@ -810,7 +810,8 @@ static int qup_i2c_bam_do_xfer(struct qu
 	if (ret || qup->bus_err || qup->qup_err) {
 		reinit_completion(&qup->xfer);
 
-		if (qup_i2c_change_state(qup, QUP_RUN_STATE)) {
+		ret = qup_i2c_change_state(qup, QUP_RUN_STATE);
+		if (ret) {
 			dev_err(qup->dev, "change to run state timed out");
 			goto desc_err;
 		}