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IB: Fix ib_umem_get() when npages == 0 

gcc correctly warned:

drivers/infiniband/core/umem.c: In function 'ib_umem_get':
drivers/infiniband/core/umem.c:78: warning: 'ret' may be used uninitialized in this function

Set ret to 0 in case npages == 0 and the loop isn't entered at all.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Andrew Morton 2007-06-08 16:29:43 -07:00 committed by Roland Dreier
parent 43506d954e
commit 1d3f4b905a
1 changed files with 1 additions and 0 deletions
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drivers/infiniband/core/umem.c
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@ -121,6 +121,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
cur_base = addr & PAGE_MASK;
ret = 0;
while (npages) {
ret = get_user_pages(current, current->mm, cur_base,
min_t(int, npages,