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authorJeff Layton <jlayton@redhat.com>2011-05-17 06:40:30 -0400
committerSteve French <sfrench@us.ibm.com>2011-05-17 18:51:14 +0000
commit221d1d797202984cb874e3ed9f1388593d34ee22 (patch)
treee86b9b3b4b54806b769de8777add5b52e73cf00f
parentc1d10d18c542278b7fbc413c289d3cb6219da6b3 (diff)
downloadlinux-stericsson-221d1d797202984cb874e3ed9f1388593d34ee22.tar.gz
cifs: add fallback in is_path_accessible for old servers
The is_path_accessible check uses a QPathInfo call, which isn't supported by ancient win9x era servers. Fall back to an older SMBQueryInfo call if it fails with the magic error codes. Cc: stable@kernel.org Reported-and-Tested-by: Sandro Bonazzola <sandro.bonazzola@gmail.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
-rw-r--r--fs/cifs/connect.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 05f1dcf7d79a..277262a8e82f 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2673,6 +2673,11 @@ is_path_accessible(int xid, struct cifsTconInfo *tcon,
0 /* not legacy */, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
+
+ if (rc == -EOPNOTSUPP || rc == -EINVAL)
+ rc = SMBQueryInformation(xid, tcon, full_path, pfile_info,
+ cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
kfree(pfile_info);
return rc;
}