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authorMax Reitz <mreitz@redhat.com>2016-10-12 22:49:05 +0200
committerMax Reitz <mreitz@redhat.com>2016-11-11 15:56:22 +0100
commitceff5bd79cdf94c650902fe9a20d316dcbfa1cc9 (patch)
treebb750c7055041340987302406f303d2779d07492
parent07555ba6f303d4be8af538c3a66cc46ccb2e5751 (diff)
downloadfocaccia-qemu-ceff5bd79cdf94c650902fe9a20d316dcbfa1cc9.tar.gz
focaccia-qemu-ceff5bd79cdf94c650902fe9a20d316dcbfa1cc9.zip
block: Fix bdrv_iterate_format() sorting
bdrv_iterate_format() did not actually sort the formats by name but by
"pointer interpreted as string". That is probably not what we intended
to do, so fix it (by changing qsort_strcmp() so it matches the example
from qsort()'s manual page).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20161012204907.25941-2-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
-rw-r--r--block.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block.c b/block.c
index c19c6c6d42..67c70c1010 100644
--- a/block.c
+++ b/block.c
@@ -2796,7 +2796,7 @@ const char *bdrv_get_format_name(BlockDriverState *bs)
 
 static int qsort_strcmp(const void *a, const void *b)
 {
-    return strcmp(a, b);
+    return strcmp(*(char *const *)a, *(char *const *)b);
 }
 
 void bdrv_iterate_format(void (*it)(void *opaque, const char *name),