[PATCH 1/3] fsck(8): adjust error logic for recent erealloc to ereallocarray switch

[Benjamin Baier]

Hello tech@

adjust error logic for zero sized allocations and the error messages for 
the recent erealloc to ereallocarray switch.

A follow up diff will clean up all "if (x) free(x);" statements.

Index: fsutil.c
===================================================================
RCS file: /cvs/src/sbin/fsck/fsutil.c,v
retrieving revision 1.20
diff -u -p -r1.20 fsutil.c
--- fsutil.c    16 Jan 2015 06:39:57 -0000      1.20
+++ fsutil.c    29 May 2015 08:48:57 -0000
@@ -252,13 +252,15 @@ ereallocarray(void *p, size_t n, size_t
 {
        void *newp;

-       if (s == 0)
-               err(1, "realloc failed");
+       if (n == 0 || s == 0) {
+               free(p);
+               err(1, "reallocarray failed");
+       }
        newp = reallocarray(p, n, s);
        if (newp == NULL) {
                if (p)
                        free(p);
-               err(1, "realloc failed");
+               err(1, "reallocarray failed");
        }
        return newp;
 }