convert ewah/bitmap code to use xmalloc

This code was originally written with the idea that it could
be spun off into its own ewah library, and uses the
overrideable ewah_malloc to do allocations.

We plug in xmalloc as our ewah_malloc, of course. But over
the years the ewah code itself has become more entangled
with git, and the return value of many ewah_malloc sites is
not checked.

Let's just drop the level of indirection and use xmalloc and
friends directly. This saves a few lines, and will let us
adapt these sites to our more advanced malloc helpers.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 3 insertions, 6 deletions

diff --git a/ewah/ewah_bitmap.c b/ewah/ewah_bitmap.c
index b522437c0a..fcd465e9c2 100644
--- a/ewah/ewah_bitmap.c
+++ b/ewah/ewah_bitmap.c
@@ -39,7 +39,7 @@ static inline void buffer_grow(struct ewah_bitmap *self, size_t new_size)
 		return;
 
 	self->alloc_size = new_size;
-	self->buffer = ewah_realloc(self->buffer,
+	self->buffer = xrealloc(self->buffer,
 		self->alloc_size * sizeof(eword_t));
 	self->rlw = self->buffer + (rlw_offset / sizeof(eword_t));
 }
@@ -282,11 +282,8 @@ struct ewah_bitmap *ewah_new(void)
 {
 	struct ewah_bitmap *self;
 
-	self = ewah_malloc(sizeof(struct ewah_bitmap));
-	if (self == NULL)
-		return NULL;
-
-	self->buffer = ewah_malloc(32 * sizeof(eword_t));
+	self = xmalloc(sizeof(struct ewah_bitmap));
+	self->buffer = xmalloc(32 * sizeof(eword_t));
 	self->alloc_size = 32;
 
 	ewah_clear(self);