From: Jo-Philipp Wich <jow@openwrt.org>
Date: Wed, 25 Feb 2015 12:44:40 +0000 (+0100)
Subject: libfstools: extroot: simplify kmodloader invocation
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Ffstools.git;a=commitdiff_plain;h=4b68e9f9ea894bf58d31e26ca5ed92c81b1a115e;hp=e1119791504bc5cc2302a844232dd469408b769d

libfstools: extroot: simplify kmodloader invocation

Now that kmodloader supports LD_LIBRARY_PATH and ignores argv[2] we can
remove the extra argument and save one intermediate pointer.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
---

diff --git a/libfstools/extroot.c b/libfstools/extroot.c
index 4225d8b..73ceae8 100644
--- a/libfstools/extroot.c
+++ b/libfstools/extroot.c
@@ -33,8 +33,7 @@ int mount_extroot(void)
 {
 	char ldlib_path[32];
 	char block_path[32];
-	char kmod_loader[128];
-	char *kmod_prefix;
+	char kmod_loader[64];
 	struct stat s;
 	pid_t pid;
 
@@ -62,8 +61,8 @@ int mount_extroot(void)
 	/* set LD_LIBRARY_PATH env var and load kmods from overlay if we found a lib directory there */
 	if (!stat(ldlib_path, &s) && S_ISDIR(s.st_mode)) {
 		setenv("LD_LIBRARY_PATH", ldlib_path, 1);
-		kmod_prefix = dirname(ldlib_path);
-		sprintf(kmod_loader, "/sbin/kmodloader %s/etc/modules-boot.d/ %s", kmod_prefix, kmod_prefix);
+		snprintf(kmod_loader, sizeof(kmod_loader),
+		         "/sbin/kmodloader %s/etc/modules-boot.d/", dirname(ldlib_path));
 		system(kmod_loader);
 	}