From e2f6af2a6fb09163318ce8cdb3a49af3c9df9b20 Mon Sep 17 00:00:00 2001 From: popcornmix Date: Tue, 6 Aug 2019 15:23:14 +0100 Subject: [PATCH] clk-bcm2835: Avoid null pointer exception clk_desc_array[BCM2835_PLLB] doesn't exist so we dereference null when iterating Signed-off-by: popcornmix --- drivers/clk/bcm/clk-bcm2835.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) --- a/drivers/clk/bcm/clk-bcm2835.c +++ b/drivers/clk/bcm/clk-bcm2835.c @@ -2334,9 +2334,11 @@ static bool bcm2835_clk_is_claimed(const int i; for (i = 0; i < ARRAY_SIZE(clk_desc_array); i++) { - const char *clk_name = *(const char **)(clk_desc_array[i].data); - if (!strcmp(name, clk_name)) - return bcm2835_clk_claimed[i]; + if (clk_desc_array[i].data) { + const char *clk_name = *(const char **)(clk_desc_array[i].data); + if (!strcmp(name, clk_name)) + return bcm2835_clk_claimed[i]; + } } return false;