Patchwork [11/16] s390: fix short kernel command lines

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Submitter Alexander Graf
Date Nov. 11, 2011, 5:49 p.m.
Message ID <1321033763-19881-12-git-send-email-agraf@suse.de>
Download mbox | patch
Permalink /patch/125257/
State New
Headers show

Comments

Alexander Graf - Nov. 11, 2011, 5:49 p.m.
From: Christian Borntraeger <borntraeger@de.ibm.com>

The default kernel command line for s390 is
"root=/dev/ram0 ro"

When overriding this line, we have to ensure to also copy the \0 to
avoid false lines, for example, -append "root=/dev/vda" will result in
"root=/dev/vda0 ro" with the current code.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 hw/s390-virtio.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

Patch

diff --git a/hw/s390-virtio.c b/hw/s390-virtio.c
index 003d5ab..ee850f0 100644
--- a/hw/s390-virtio.c
+++ b/hw/s390-virtio.c
@@ -230,7 +230,7 @@  static void s390_init(ram_addr_t my_ram_size,
 
     if (kernel_cmdline) {
         cpu_physical_memory_write(KERN_PARM_AREA, kernel_cmdline,
-                                  strlen(kernel_cmdline));
+                                  strlen(kernel_cmdline) + 1);
     }
 
     /* Create VirtIO network adapters */