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authorArnd Bergmann <arnd@arndb.de>2017-04-28 12:44:11 +0300
committerRob Herring <robh@kernel.org>2017-05-03 15:10:33 +0300
commitee320b33b4a316e22612ad6409517fc647f2a37c (patch)
tree41565bbce79765565bdd0a0ca936c3936ad47cd6 /drivers/of/unittest.c
parent5d4dd65b1e98ff640c3bdb546a169e397805831e (diff)
downloadlinux-ee320b33b4a316e22612ad6409517fc647f2a37c.tar.xz
of: fix uninitialized variable warning for overlay test
gcc warns that an empty device tree would cause undefined behavior: drivers/of/unittest.c: In function 'of_unittest': drivers/of/unittest.c:2199:25: warning: 'last_sibling' may be used uninitialized in this function [-Wmaybe-uninitialized] This adds an initialization of the variable to zero, which we handle correctly. Fixes: 81d0848fc8d2 ("of: Add unit tests for applying overlays") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/of/unittest.c')
-rw-r--r--drivers/of/unittest.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 12597ff8cfb0..6b8f3e6aa43c 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -2192,7 +2192,7 @@ static __init void of_unittest_overlay_high_level(void)
mutex_lock(&of_mutex);
- for (np = of_root->child; np; np = np->sibling)
+ for (last_sibling = np = of_root->child; np; np = np->sibling)
last_sibling = np;
if (last_sibling)