It currently test to see if errno == -EINVAL and whether the endptr
is '\0'. That's not correct however. What we really want it to do is
check to see if any error occurred by setting errno to 0 before the
conversion. If one did, then try to treat the value as a name.

Also fix a bogus compiler warning about cruid being uninitialized.

Signed-off-by: Jeff Layton <[email protected]>
---
 mount.cifs.c |   11 +++++++----
 1 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/mount.cifs.c b/mount.cifs.c
index 29b0d4c..9d7e107 100644
--- a/mount.cifs.c
+++ b/mount.cifs.c
@@ -861,7 +861,7 @@ parse_options(const char *data, struct parsed_mount_info 
*parsed_info)
        int got_uid = 0;
        int got_cruid = 0;
        int got_gid = 0;
-       uid_t uid, cruid;
+       uid_t uid, cruid = 0;
        gid_t gid;
        char *ep;
        struct passwd *pw;
@@ -1031,8 +1031,9 @@ parse_options(const char *data, struct parsed_mount_info 
*parsed_info)
                                goto nocopy;
 
                        got_uid = 1;
+                       errno = 0;
                        uid = strtoul(value, &ep, 10);
-                       if (errno != EINVAL && *ep == '\0')
+                       if (errno == 0)
                                goto nocopy;
 
                        pw = getpwnam(value);
@@ -1049,8 +1050,9 @@ parse_options(const char *data, struct parsed_mount_info 
*parsed_info)
                                goto nocopy;
 
                        got_cruid = 1;
+                       errno = 0;
                        cruid = strtoul(value, &ep, 10);
-                       if (errno != EINVAL && *ep == '\0')
+                       if (errno == 0)
                                goto nocopy;
 
                        pw = getpwnam(value);
@@ -1066,8 +1068,9 @@ parse_options(const char *data, struct parsed_mount_info 
*parsed_info)
                                goto nocopy;
 
                        got_gid = 1;
+                       errno = 0;
                        gid = strtoul(value, &ep, 10);
-                       if (errno != EINVAL && *ep == '\0')
+                       if (errno == 0)
                                goto nocopy;
 
                        gr = getgrnam(value);
-- 
1.7.4.4

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