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-Url: https://git.stricted.de/?a=commitdiff_plain;h=221d1d797202984cb874e3ed9f1388593d34ee22;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git 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 Signed-off-by: Jeff Layton Signed-off-by: Steve French --- 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; }