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dlm: NULL check before kmem_cache_destroy is not needed 

kmem_cache_destroy(NULL) is safe, so removes NULL check before
freeing the mem. This patch also fix ifnullfree.cocci warnings.

Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Signed-off-by: David Teigland <teigland@redhat.com>
hifive-unleashed-5.1
Wen Yang 2018-11-28 15:25:00 +08:00 committed by David Teigland
parent 8fc6ed9a35
commit f31a896928
1 changed files with 3 additions and 6 deletions
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9
fs/dlm/memory.c
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@ -38,10 +38,8 @@ int __init dlm_memory_init(void)
void dlm_memory_exit(void)
{
if (lkb_cache)
kmem_cache_destroy(lkb_cache);
if (rsb_cache)
kmem_cache_destroy(rsb_cache);
kmem_cache_destroy(lkb_cache);
kmem_cache_destroy(rsb_cache);
}
char *dlm_allocate_lvb(struct dlm_ls *ls)
@ -86,8 +84,7 @@ void dlm_free_lkb(struct dlm_lkb *lkb)
struct dlm_user_args *ua;
ua = lkb->lkb_ua;
if (ua) {
if (ua->lksb.sb_lvbptr)
kfree(ua->lksb.sb_lvbptr);
kfree(ua->lksb.sb_lvbptr);
kfree(ua);
}
}