staging: lustre: llite: return from ll_adjust_lum() if lump is NULL

No need to check several times if lump is NULL. Just test once and
return 0 if NULL.

Signed-off-by: Bobi Jam <bobijam.xu@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-9484
Reviewed-on: https://review.whamcloud.com/27126
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Niu Yawei <yawei.niu@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/lustre/lustre/llite/xattr.c b/drivers/staging/lustre/lustre/llite/xattr.c
index 78ce85b..56ac07e 100644 (file)
--- a/drivers/staging/lustre/lustre/llite/xattr.c
+++ b/drivers/staging/lustre/lustre/llite/xattr.c
@@ -190,15 +190,18 @@ static int ll_adjust_lum(struct inode *inode, struct lov_user_md *lump)
 {
        int rc = 0;
 
+       if (!lump)
+               return 0;
+
        /* Attributes that are saved via getxattr will always have
         * the stripe_offset as 0.  Instead, the MDS should be
         * allowed to pick the starting OST index.   b=17846
         */
-       if (lump && lump->lmm_stripe_offset == 0)
+       if (lump->lmm_stripe_offset == 0)
                lump->lmm_stripe_offset = -1;
 
        /* Avoid anyone directly setting the RELEASED flag. */
-       if (lump && (lump->lmm_pattern & LOV_PATTERN_F_RELEASED)) {
+       if (lump->lmm_pattern & LOV_PATTERN_F_RELEASED) {
                /* Only if we have a released flag check if the file
                 * was indeed archived.
                 */