[IA64] eliminate NULL test and memset after alloc_bootmem

As noted by Akinobu Mita in patch b1fceac2b9e04d278316b2faddf276015fc06e3b,
alloc_bootmem and related functions never return NULL and always return a
zeroed region of memory.  Thus a NULL test or memset after calls to these
functions is unnecessary.

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>

diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index bb1d249..b683eb3 100644 (file)
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -512,7 +512,6 @@ static void __init sn_init_pdas(char **cmdline_p)
        for_each_online_node(cnode) {
                nodepdaindr[cnode] =
                    alloc_bootmem_node(NODE_DATA(cnode), sizeof(nodepda_t));
-               memset(nodepdaindr[cnode], 0, sizeof(nodepda_t));
                memset(nodepdaindr[cnode]->phys_cpuid, -1,
                    sizeof(nodepdaindr[cnode]->phys_cpuid));
                spin_lock_init(&nodepdaindr[cnode]->ptc_lock);
@@ -521,11 +520,9 @@ static void __init sn_init_pdas(char **cmdline_p)
        /*
         * Allocate & initialize nodepda for TIOs.  For now, put them on node 0.
         */
-       for (cnode = num_online_nodes(); cnode < num_cnodes; cnode++) {
+       for (cnode = num_online_nodes(); cnode < num_cnodes; cnode++)
                nodepdaindr[cnode] =
                    alloc_bootmem_node(NODE_DATA(0), sizeof(nodepda_t));
-               memset(nodepdaindr[cnode], 0, sizeof(nodepda_t));
-       }
 
        /*
         * Now copy the array of nodepda pointers to each nodepda.