Since commit ac10be5cdbfa ("arm64: Use common of_kexec_alloc_and_setup_fdt()"), smatch reports the following warning: arch/arm64/kernel/machine_kexec_file.c:152 load_other_segments() warn: missing error code 'ret' Return code is not set to an error code in load_other_segments() when of_kexec_alloc_and_setup_fdt() call returns a NULL dtb. This results in status success (return code set to 0) being returned from load_other_segments(). Set return code to -ENOMEM if of_kexec_alloc_and_setup_fdt() returns NULL dtb. Signed-off-by: Lakshmi Ramasubramanian <nramas(a)linux.microsoft.com&gt; Reported-by: kernel test robot <lkp(a)intel.com&gt; Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com&gt; Fixes: ac10be5cdbfa ("arm64: Use common of_kexec_alloc_and_setup_fdt()") --- Patch created in dt/next branch in git repo https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git arch/arm64/kernel/machine_kexec_file.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/kernel/machine_kexec_file.c b/arch/arm64/kernel/machine_kexec_file.c index 63634b4d72c1..04d072885e64 100644 --- a/arch/arm64/kernel/machine_kexec_file.c +++ b/arch/arm64/kernel/machine_kexec_file.c @@ -149,6 +149,7 @@ int load_other_segments(struct kimage *image, initrd_len, cmdline, 0); if (!dtb) { pr_err("Preparing for new dtb failed\n"); + ret = -ENOMEM; goto out_err; }