There's no need for the while loop now, also we can
connect two (ret > 0) condition legs together.

Link: http://lkml.kernel.org/n/tip-2vg28bak8euojuvq33cy2...@git.kernel.org
Signed-off-by: Jiri Olsa <jo...@kernel.org>
---
 tools/perf/util/dso.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 6baad22ec8a9..6fdff723e55a 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -822,25 +822,20 @@ static ssize_t
 dso_cache__read(struct dso *dso, struct machine *machine,
                u64 offset, u8 *data, ssize_t size)
 {
+       u64 cache_offset = offset & DSO__DATA_CACHE_MASK;
        struct dso_cache *cache;
        struct dso_cache *old;
        ssize_t ret;
 
-       do {
-               u64 cache_offset = offset & DSO__DATA_CACHE_MASK;
-
-               cache = zalloc(sizeof(*cache) + DSO__DATA_CACHE_SIZE);
-               if (!cache)
-                       return -ENOMEM;
-
-               ret = file_read(dso, machine, cache_offset, cache->data);
+       cache = zalloc(sizeof(*cache) + DSO__DATA_CACHE_SIZE);
+       if (!cache)
+               return -ENOMEM;
 
+       ret = file_read(dso, machine, cache_offset, cache->data);
+       if (ret > 0) {
                cache->offset = cache_offset;
                cache->size   = ret;
-       } while (0);
-
 
-       if (ret > 0) {
                old = dso_cache__insert(dso, cache);
                if (old) {
                        /* we lose the race */
-- 
2.17.2

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