[PATCH] powerpc/kexec_file: print error string on usable memory property update failure

[Sourabh Jain]

Print the FDT error description along with the error message if failed
to set the "linux,drconf-usable-memory" property in the kdump kernel's
FDT.

Signed-off-by: Sourabh Jain <sourabhjain at linux.ibm.com>
---
 arch/powerpc/kexec/file_load_64.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kexec/file_load_64.c b/arch/powerpc/kexec/file_load_64.c
index 349a781cea0b3..7602f7e1e634e 100644
--- a/arch/powerpc/kexec/file_load_64.c
+++ b/arch/powerpc/kexec/file_load_64.c
@@ -687,7 +687,8 @@ static int update_usable_mem_fdt(void *fdt, struct crash_mem *usable_mem)
 		ret = fdt_setprop(fdt, node, "linux,drconf-usable-memory",
 				  um_info.buf, (um_info.idx * sizeof(u64)));
 		if (ret) {
-			pr_err("Failed to update fdt with linux,drconf-usable-memory property");
+			pr_err("Failed to update fdt with linux,drconf-usable-memory property: %s",
+			       fdt_strerror(ret));
 			goto out;
 		}
 	}
-- 
2.38.1