[PATCH] net/ice: fix wrong DDP search path

[Zhichao Zeng]

In the previous implementation, when the user did not enter any value in
"/sys/module/firmware_class/parameters/path", it would incorrectly search
for DDP packages under "/". This commit fixes this issue.

Fixes: 9207f93640a7 ("net/ice: support custom search path for DDP package")

Signed-off-by: Zhichao Zeng <zhichaox.z...@intel.com>
---
 drivers/net/ice/ice_ethdev.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index d5e94a6685..0705f8e961 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -1922,8 +1922,11 @@ static int ice_read_customized_path(char *pkg_file, 
uint16_t buff_len)
                return -EIO;
        }
 
-       if (pkg_file[n - 1] == '\n')
+       if (pkg_file[n - 1] == '\n') {
                n--;
+               if (n == 0)
+                       return -EINVAL;
+       }
 
        pkg_file[n] = '\0';
 
-- 
2.34.1