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authorHeiko Carstens <heiko.carstens@de.ibm.com>2012-09-06 13:19:08 (GMT)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2012-09-26 13:45:14 (GMT)
commitd978386e79412e45d1aea81eee345dac23d20865 (patch)
tree78312cbddb4c84f27582fd2cdbc9e649f2a23954 /arch/s390
parenta8f6db4d2990d6866ba5d9c699cfc0835b9d8859 (diff)
downloadlinux-d978386e79412e45d1aea81eee345dac23d20865.tar.xz
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>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/kernel/machine_kexec.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index 0d5063e0..cc91386 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -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();