[PATCH] kallsyms: handle malloc() failure

This fixes coverity bugs #398 and #397

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index d591578..22d281c 100644 (file)
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -124,6 +124,11 @@ static int read_symbol(FILE *in, struct sym_entry *s)
         * compressed together */
        s->len = strlen(str) + 1;
        s->sym = malloc(s->len + 1);
+       if (!s->sym) {
+               fprintf(stderr, "kallsyms failure: "
+                       "unable to allocate required amount of memory\n");
+               exit(EXIT_FAILURE);
+       }
        strcpy((char *)s->sym + 1, str);
        s->sym[0] = stype;
 
@@ -272,7 +277,12 @@ static void write_src(void)
 
        /* table of offset markers, that give the offset in the compressed stream
         * every 256 symbols */
-       markers = (unsigned int *) malloc(sizeof(unsigned int) * ((table_cnt + 255) / 256));
+       markers = malloc(sizeof(unsigned int) * ((table_cnt + 255) / 256));
+       if (!markers) {
+               fprintf(stderr, "kallsyms failure: "
+                       "unable to allocate required memory\n");
+               exit(EXIT_FAILURE);
+       }
 
        output_label("kallsyms_names");
        off = 0;