Messages in this thread Patch in this message | | | From | Alexandra Diupina <> | Subject | [PATCH] clk: keystone: sci-clk: check devm_kmalloc_array() return value | Date | Wed, 10 Jan 2024 16:46:21 +0300 |
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devm_kmalloc_array() may return NULL, so check return value to avoid null pointer dereferencing
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 3c13933c6033 ("clk: keystone: sci-clk: add support for dynamically probing clocks") Signed-off-by: Alexandra Diupina <adiupina@astralinux.ru> --- drivers/clk/keystone/sci-clk.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/clk/keystone/sci-clk.c b/drivers/clk/keystone/sci-clk.c index 35fe197dd303..a2fa24e4f88a 100644 --- a/drivers/clk/keystone/sci-clk.c +++ b/drivers/clk/keystone/sci-clk.c @@ -459,6 +459,9 @@ static int ti_sci_scan_clocks_from_fw(struct sci_clk_provider *provider) tmp_clks = devm_kmalloc_array(dev, max_clks + 64, sizeof(sci_clk), GFP_KERNEL); + if (!tmp_clks) + return -ENOMEM; + memcpy(tmp_clks, clks, max_clks * sizeof(sci_clk)); if (max_clks) devm_kfree(dev, clks); -- 2.30.2
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