[PATCH v5 1/2] RDMA/hfi1: Fix error return code in parse_platform_config()

[Wang Yufen <wangyufen@huawei.com>]

In the previous iteration of the while loop, the "ret" may have been
assigned a value of 0, so the error return code -EINVAL may have been
incorrectly set to 0. To fix set valid return code before calling to
goto.

Fixes: 97167e813415 ("staging/rdma/hfi1: Tune for unknown channel if configuration file is absent")
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
---
 drivers/infiniband/hw/hfi1/firmware.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/infiniband/hw/hfi1/firmware.c b/drivers/infiniband/hw/hfi1/firmware.c
index 1d77514..0c0cef5 100644
--- a/drivers/infiniband/hw/hfi1/firmware.c
+++ b/drivers/infiniband/hw/hfi1/firmware.c
@@ -1743,6 +1743,7 @@ int parse_platform_config(struct hfi1_devdata *dd)
 
 	if (!dd->platform_config.data) {
 		dd_dev_err(dd, "%s: Missing config file\n", __func__);
+		ret = -EINVAL;
 		goto bail;
 	}
 	ptr = (u32 *)dd->platform_config.data;
@@ -1751,6 +1752,7 @@ int parse_platform_config(struct hfi1_devdata *dd)
 	ptr++;
 	if (magic_num != PLATFORM_CONFIG_MAGIC_NUM) {
 		dd_dev_err(dd, "%s: Bad config file\n", __func__);
+		ret = -EINVAL;
 		goto bail;
 	}
 
@@ -1774,6 +1776,7 @@ int parse_platform_config(struct hfi1_devdata *dd)
 	if (file_length > dd->platform_config.size) {
 		dd_dev_info(dd, "%s:File claims to be larger than read size\n",
 			    __func__);
+		ret = -EINVAL;
 		goto bail;
 	} else if (file_length < dd->platform_config.size) {
 		dd_dev_info(dd,
@@ -1794,6 +1797,7 @@ int parse_platform_config(struct hfi1_devdata *dd)
 			dd_dev_err(dd, "%s: Failed validation at offset %ld\n",
 				   __func__, (ptr - (u32 *)
 					      dd->platform_config.data));
+			ret = -EINVAL;
 			goto bail;
 		}
 
@@ -1837,6 +1841,7 @@ int parse_platform_config(struct hfi1_devdata *dd)
 					   __func__, table_type,
 					   (ptr - (u32 *)
 					    dd->platform_config.data));
+				ret = -EINVAL;
 				goto bail; /* We don't trust this file now */
 			}
 			pcfgcache->config_tables[table_type].table = ptr;
@@ -1856,6 +1861,7 @@ int parse_platform_config(struct hfi1_devdata *dd)
 					   __func__, table_type,
 					   (ptr -
 					    (u32 *)dd->platform_config.data));
+				ret = -EINVAL;
 				goto bail; /* We don't trust this file now */
 			}
 			pcfgcache->config_tables[table_type].table_metadata =
-- 
1.8.3.1