Commit d978386e authored Sep 06, 2012 by Heiko Carstens Committed by Martin Schwidefsky Sep 26, 2012

s390/kexec: change return value of machine_kexec_prepare



Returning -ENOSYS on kexec_load() is a bad idea since user space cannot
tell if the system call is not implmented or if it failed.
Use -EOPNOTSUPP in case somebody tries a kexec_load on a NSS image based
kernel instead.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent a8f6db4d

arch/s390/kernel/machine_kexec.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -159,7 +159,7 @@ int machine_kexec_prepare(struct kimage *image)

		/* Can't replace kernel image since it is read-only. */
		if (ipl_flags & IPL_NSS_VALID)
		return -ENOSYS;
		return -EOPNOTSUPP;

		if (image->type == KEXEC_TYPE_CRASH)
		return machine_kexec_prepare_kdump();