minios: clean up allocation of char arrays used for xenbus paths

This patch cleans up instances of char array allocation where string
lengths were manually counted to use strlen() instead. There are no
functional changes in this patch.

Signed-off-by: Matt Wilson <msw@amazon.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-By: Samuel Thibault <samuel.thibault@ens-lyon.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/extras/mini-os/pcifront.c b/extras/mini-os/pcifront.c
index f9ae768170..e6a5f4e7bf 100644
--- a/extras/mini-os/pcifront.c
+++ b/extras/mini-os/pcifront.c
@@ -149,7 +149,7 @@ struct pcifront_dev *init_pcifront(char *_nodename)
 
     struct pcifront_dev *dev;
 
-    char path[strlen(nodename) + 1 + 10 + 1];
+    char path[strlen(nodename) + strlen("/backend-id") + 1];
 
     if (!_nodename && pcidev)
         return pcidev;
@@ -237,8 +237,8 @@ done:
     printk("backend at %s\n", dev->backend);
 
     {
-        char path[strlen(dev->backend) + 1 + 5 + 1];
-        char frontpath[strlen(nodename) + 1 + 5 + 1];
+        char path[strlen(dev->backend) + strlen("/state") + 1];
+        char frontpath[strlen(nodename) + strlen("/state") + 1];
         XenbusState state;
         snprintf(path, sizeof(path), "%s/state", dev->backend);
 
@@ -322,7 +322,7 @@ void shutdown_pcifront(struct pcifront_dev *dev)
     char* err = NULL;
     XenbusState state;
 
-    char path[strlen(dev->backend) + 1 + 5 + 1];
+    char path[strlen(dev->backend) + strlen("/state") + 1];
     char nodename[strlen(dev->nodename) + strlen("/event-channel") + 1];
 
     printk("close pci: backend at %s\n",dev->backend);