--- latencytop-0.4.orig/latencytop.c

+++ latencytop-0.4/latencytop.c

@@ -47,6 +47,7 @@

 int firsttime = 1;

 int noui; 

 int dump_unknown;

+static void disable_sysctl(void);

 static void add_to_global(struct latency_line *line)

 {

@@ -95,10 +96,14 @@

 	size_t dummy;

 	file = fopen("/proc/latency_stats","r+");

 	if (!file) {

-		cleanup_curses() ;

-		fprintf(stderr, "Please enable the CONFIG_LATENCYTOP configuration in your kernel.\n");

-		fprintf(stderr, "Exiting...\n");

-		exit(EXIT_FAILURE);

+		cleanup_curses();

+		disable_sysctl();

+		fputs(	"Are you root?\n"

+			"Please enable the CONFIG_LATENCYTOP configuration in your kernel.\n"

+			"Exiting...\n", stderr);

+		/*exit(EXIT_FAILURE); would call atexit function:

+		 * cleanup_curses, so deleting above message.*/

+		_exit(EXIT_FAILURE);

 	}

 	/* wipe first line */

 	ln = NULL;

@@ -474,9 +479,14 @@

 {

 	FILE *file;

 	file = fopen("/proc/sys/kernel/latencytop", "w");

-	if (!file)

+	if (!file) {

+	    	perror("Error writing to /proc/sys/kernel/latencytop");

+		return;

+	}

+	if (putc('1', file) == EOF) {

+	    	perror("Error writing to /proc/sys/kernel/latencytop");

 		return;

-	fprintf(file, "1");

+	}

 	fclose(file);

 }

@@ -484,9 +494,14 @@

 {

 	FILE *file;

 	file = fopen("/proc/sys/kernel/latencytop", "w");

-	if (!file)

+	if (!file) {

+	    	perror("Error writing to /proc/sys/kernel/latencytop");

 		return;

-	fprintf(file, "0");

+	}

+	if (putc('0', file) == EOF) {

+		perror("Error writing to /proc/sys/kernel/latencytop");

+		return;

+	}

 	fclose(file);

 }

@@ -494,8 +509,9 @@

 {

 	int ret = 1;

 	enable_sysctl();

+	atexit(disable_sysctl);

 	if (argc>1 && strcmp(argv[1],"-d")==0) {

-		init_translations("latencytop.trans");

+		init_translations("/usr/share/latencytop/latencytop.trans");

 		parse_global_list();

 		sort_list();

 		dump_global_to_console();

@@ -508,7 +524,7 @@

 	if (argc>1 && strcmp(argv[1],"--block")==0) {

 		printf("Doing block tracing\n");

-		init_translations("latencytop.block");

+		init_translations("/usr/share/latencytop/latencytop.block");

 		noui = 1;

 		dump_unknown = 1;

 	}

@@ -531,7 +547,5 @@

 	}

 	prune_unused_procs();

 	delete_list();

-	cleanup_curses();

-	disable_sysctl();

 	return EXIT_SUCCESS;

 }

--- latencytop-0.4.orig/translate.c

+++ latencytop-0.4/translate.c

@@ -97,8 +97,10 @@

 	FILE *file;

 	file = fopen(filename, "r");

-	if (!file)

+	if (!file) {

+	    	perror("Could not read translation file");

 		return;

+	}

 	while (!feof(file)) {

 		struct translate_line *trans;

 		size_t dummy;