powerpc/powernv: Treat an empty reboot string as default

Treat an empty reboot cmd string the same as a NULL string. This squashes a
spurious unsupported reboot message that sometimes gets out when using
xmon.

Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200217024833.30580-1-oohall@gmail.com
This commit is contained in:
Oliver O'Halloran 2020-02-17 13:48:32 +11:00 committed by Michael Ellerman
parent d42c6d0f8d
commit 16985f2d25

View File

@ -229,7 +229,7 @@ static void __noreturn pnv_restart(char *cmd)
pnv_prepare_going_down();
do {
if (!cmd)
if (!cmd || !strlen(cmd))
rc = opal_cec_reboot();
else if (strcmp(cmd, "full") == 0)
rc = opal_cec_reboot2(OPAL_REBOOT_FULL_IPL, NULL);