alpha: replace sprintf()/strcpy() with scnprintf()/strscpy()

Replace sprintf() with the safer variant scnprintf() and use its return
value instead of calculating the string length again using strlen().

Use strscpy() instead of the deprecated strcpy().

No functional changes intended.

Link: KSPP#88
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Thorsten Blum <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: guoweikang <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Mike Rapoport <[email protected]>
Cc: Richard Henderson <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

Author: toblux

arch/alpha/kernel/core_marvel.c

@@ -17,6 +17,7 @@
 #include <linux/vmalloc.h>
 #include <linux/mc146818rtc.h>
 #include <linux/rtc.h>
+#include <linux/string.h>
 #include <linux/module.h>
 #include <linux/memblock.h>
 
@@ -79,10 +80,12 @@ mk_resource_name(int pe, int port, char *str)
 {
 	char tmp[80];
 	char *name;
-	
-	sprintf(tmp, "PCI %s PE %d PORT %d", str, pe, port);
-	name = memblock_alloc_or_panic(strlen(tmp) + 1, SMP_CACHE_BYTES);
-	strcpy(name, tmp);
+	size_t sz;
+
+	sz = scnprintf(tmp, sizeof(tmp), "PCI %s PE %d PORT %d", str, pe, port);
+	sz += 1; /* NUL terminator */
+	name = memblock_alloc_or_panic(sz, SMP_CACHE_BYTES);
+	strscpy(name, tmp, sz);
 
 	return name;
 }