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block: avoid a write only variable

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Compiling with GCC 4.6.0 20100925 produced a warning:
/src/qemu/block/qcow2-refcount.c: In function 'update_refcount':
/src/qemu/block/qcow2-refcount.c:552:13: error: variable 'dummy' set but not used [-Werror=unused-but-set-variable]

Fix by adding a dummy cast so that the result is not unused.

Acked-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Blue Swirl 2010-10-13 18:38:07 +00:00
parent a2d3f69530
commit 83e3f76c25
1 changed files with 1 additions and 0 deletions
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block/qcow2-refcount.c
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@ -551,6 +551,7 @@ fail:
if (ret < 0) { if (ret < 0) {
int dummy; int dummy;
dummy = update_refcount(bs, offset, cluster_offset - offset, -addend); dummy = update_refcount(bs, offset, cluster_offset - offset, -addend);
(void)dummy;
} }
return ret; return ret;