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| author | Arnd Bergmann <arnd@arndb.de> | 2017-04-28 11:44:11 +0200 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2017-05-03 07:10:33 -0500 |
| commit | ee320b33b4a316e22612ad6409517fc647f2a37c (patch) | |
| tree | 41565bbce79765565bdd0a0ca936c3936ad47cd6 /drivers/of/unittest.c | |
| parent | 5d4dd65b1e98ff640c3bdb546a169e397805831e (diff) | |
| download | lwn-ee320b33b4a316e22612ad6409517fc647f2a37c.tar.gz lwn-ee320b33b4a316e22612ad6409517fc647f2a37c.zip | |
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.c | 2 |
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) |