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, 3 insertions, 3 deletions

diff --git a/extras/mini-os/blkfront.c b/extras/mini-os/blkfront.c
index 70976f58d0..73837f65b7 100644
--- a/extras/mini-os/blkfront.c
+++ b/extras/mini-os/blkfront.c
@@ -99,7 +99,7 @@ struct blkfront_dev *init_blkfront(char *_nodename, struct blkfront_info *info)
 
     struct blkfront_dev *dev;
 
-    char path[strlen(nodename) + 1 + 10 + 1];
+    char path[strlen(nodename) + strlen("/backend-id") + 1];
 
     printk("******************* BLKFRONT for %s **********\n\n\n", nodename);
 
@@ -189,7 +189,7 @@ done:
 
     {
         XenbusState state;
-        char path[strlen(dev->backend) + 1 + 19 + 1];
+        char path[strlen(dev->backend) + strlen("/feature-flush-cache") + 1];
         snprintf(path, sizeof(path), "%s/mode", dev->backend);
         msg = xenbus_read(XBT_NIL, path, &c);
         if (msg) {
@@ -253,7 +253,7 @@ void shutdown_blkfront(struct blkfront_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];
 
     blkfront_sync(dev);