[PATCH 119/379][SRU][OEM-5.6] bus: mhi: core: Fix some error return code

[You-Sheng Yang]

From: Wei Yongjun <weiyongjun1 at huawei.com>

BugLink: https://bugs.launchpad.net/bugs/1879633

Fix to return negative error code from the error handling case
instead of 0 in mhi_init_dev_ctxt() and mhi_driver_probe().

Fixes: 3000f85b8f47 ("bus: mhi: core: Add support for basic PM operations")
Reported-by: Hulk Robot <hulkci at huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1 at huawei.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam at linaro.org>
Link: https://lore.kernel.org/r/20200509075654.175002-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
(cherry picked from commit 1ea34b2988554af8a83a44a0a8e5aaa9e5a60c64)
Signed-off-by: You-Sheng Yang <vicamo.yang at canonical.com>
---
 drivers/bus/mhi/core/init.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c
index eb2ab058a01d..1f8c82603179 100644
--- a/drivers/bus/mhi/core/init.c
+++ b/drivers/bus/mhi/core/init.c
@@ -291,6 +291,7 @@ int mhi_init_dev_ctxt(struct mhi_controller *mhi_cntrl)
 	}
 
 	/* Setup cmd context */
+	ret = -ENOMEM;
 	mhi_ctxt->cmd_ctxt = mhi_alloc_coherent(mhi_cntrl,
 						sizeof(*mhi_ctxt->cmd_ctxt) *
 						NR_OF_CMD_RINGS,
@@ -1100,6 +1101,7 @@ static int mhi_driver_probe(struct device *dev)
 		}
 	}
 
+	ret = -EINVAL;
 	if (dl_chan) {
 		/*
 		 * If channel supports LPM notifications then status_cb should
-- 
2.29.2