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Commit ee320b33 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Rob Herring
Browse files

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: 81d0848f ("of: Add unit tests for applying overlays")
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 5d4dd65b

drivers/of/unittest.c

+1 −1
Original line number Diff line number Diff line
@@ -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)