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powerpc: If kexec_build_elf_info() fails return immediately from elf64_load()

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Uninitialized local variable "elf_info" would be passed to
kexec_free_elf_info() if kexec_build_elf_info() returns an error
in elf64_load().

If kexec_build_elf_info() returns an error, return the error
immediately.

Signed-off-by: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210421163610.23775-2-nramas@linux.microsoft.com
This commit is contained in:
Lakshmi Ramasubramanian 2021-04-21 09:36:10 -07:00 committed by Rob Herring
parent a45dd984de
commit 031cc263c0
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/kexec/elf_64.c
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@ -45,7 +45,7 @@ static void *elf64_load(struct kimage *image, char *kernel_buf,
ret = kexec_build_elf_info(kernel_buf, kernel_len, &ehdr, &elf_info);
if (ret)
goto out;
return ERR_PTR(ret);
if (image->type == KEXEC_TYPE_CRASH) {
/* min & max buffer values for kdump case */