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authorVasily Gorbik <gor@linux.ibm.com>2018-04-03 17:03:25 +0300
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2018-04-10 08:38:59 +0300
commitecc0df0f23cb5f83ee580a8d1d818524955cbc97 (patch)
tree6882dfc1a22546efc3e47791be01526ddd379491 /arch/s390
parenta0832b3aef5a793e9e04d9a7a4647ac03654ef79 (diff)
downloadlinux-ecc0df0f23cb5f83ee580a8d1d818524955cbc97.tar.xz
s390/ipl: avoid adding scpdata to cmdline during ftp/dvd boot
Add missing ipl parmblock validity check to append_ipl_scpdata. Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/kernel/ipl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index a97bc16e3d1a..39572ee8e2a7 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -397,7 +397,7 @@ size_t append_ipl_scpdata(char *dest, size_t len)
size_t rc;
rc = 0;
- if (ipl_block.hdr.pbt == DIAG308_IPL_TYPE_FCP)
+ if (ipl_block_valid && ipl_block.hdr.pbt == DIAG308_IPL_TYPE_FCP)
rc = reipl_append_ascii_scpdata(dest, len, &ipl_block);
else
dest[0] = 0;