From: Jeff Layton Date: Tue, 17 May 2011 10:40:30 +0000 (-0400) Subject: cifs: add fallback in is_path_accessible for old servers X-Git-Tag: firefly_0821_release~10186^2~10 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=46042172f111ef38f0ec7312d56f35e33f59b88f;p=firefly-linux-kernel-4.4.55.git cifs: add fallback in is_path_accessible for old servers commit 221d1d797202984cb874e3ed9f1388593d34ee22 upstream. 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. Reported-and-Tested-by: Sandro Bonazzola Signed-off-by: Jeff Layton Signed-off-by: Steve French Signed-off-by: Greg Kroah-Hartman --- diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index c156d7d72fbd..623441773c6a 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -2231,6 +2231,11 @@ 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; }