staging: lustre: lnet: keep ln_nportals consistent

ln_nportals should be zero when no portals have
been allocated.  This ensures that memory allocation failure
is handled correctly elsewhere.

Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/lustre/lnet/lnet/lib-ptl.c b/drivers/staging/lustre/lnet/lnet/lib-ptl.c
index 471f2f6..fc47379 100644 (file)
--- a/drivers/staging/lustre/lnet/lnet/lib-ptl.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-ptl.c
@@ -841,6 +841,7 @@ lnet_portals_destroy(void)
 
        cfs_array_free(the_lnet.ln_portals);
        the_lnet.ln_portals = NULL;
+       the_lnet.ln_nportals = 0;
 }
 
 int
@@ -851,12 +852,12 @@ lnet_portals_create(void)
 
        size = offsetof(struct lnet_portal, ptl_mt_maps[LNET_CPT_NUMBER]);
 
-       the_lnet.ln_nportals = MAX_PORTALS;
-       the_lnet.ln_portals = cfs_array_alloc(the_lnet.ln_nportals, size);
+       the_lnet.ln_portals = cfs_array_alloc(MAX_PORTALS, size);
        if (!the_lnet.ln_portals) {
                CERROR("Failed to allocate portals table\n");
                return -ENOMEM;
        }
+       the_lnet.ln_nportals = MAX_PORTALS;
 
        for (i = 0; i < the_lnet.ln_nportals; i++) {
                if (lnet_ptl_setup(the_lnet.ln_portals[i], i)) {