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powerpc/kexec: Use common error handling code in setup_new_fdt()

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Add a jump target so that a bit of exception handling can be better
reused at the end of this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Markus Elfring 2018-03-11 09:03:42 +01:00 committed by Michael Ellerman
parent 302c7b0c4f
commit baedcdf505
1 changed files with 12 additions and 16 deletions
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28
arch/powerpc/kernel/machine_kexec_file_64.c
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@ -269,18 +269,14 @@ int setup_new_fdt(const struct kimage *image, void *fdt,
ret = fdt_setprop_u64(fdt, chosen_node,
"linux,initrd-start",
initrd_load_addr);
if (ret < 0) {
pr_err("Error setting up the new device tree.\n");
return -EINVAL;
}
if (ret < 0)
goto err;
/* initrd-end is the first address after the initrd image. */
ret = fdt_setprop_u64(fdt, chosen_node, "linux,initrd-end",
initrd_load_addr + initrd_len);
if (ret < 0) {
pr_err("Error setting up the new device tree.\n");
return -EINVAL;
}
if (ret < 0)
goto err;
ret = fdt_add_mem_rsv(fdt, initrd_load_addr, initrd_len);
if (ret) {
@ -292,10 +288,8 @@ int setup_new_fdt(const struct kimage *image, void *fdt,
if (cmdline != NULL) {
ret = fdt_setprop_string(fdt, chosen_node, "bootargs", cmdline);
if (ret < 0) {
pr_err("Error setting up the new device tree.\n");
return -EINVAL;
}
if (ret < 0)
goto err;
} else {
ret = fdt_delprop(fdt, chosen_node, "bootargs");
if (ret && ret != -FDT_ERR_NOTFOUND) {
@ -311,10 +305,12 @@ int setup_new_fdt(const struct kimage *image, void *fdt,
}
ret = fdt_setprop(fdt, chosen_node, "linux,booted-from-kexec", NULL, 0);
if (ret) {
pr_err("Error setting up the new device tree.\n");
return -EINVAL;
}
if (ret)
goto err;
return 0;
err:
pr_err("Error setting up the new device tree.\n");
return -EINVAL;
}