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, 2 insertions, 8 deletions

diff --git a/ewah/ewah_io.c b/ewah/ewah_io.c
index 43481b9c60..4acff97d11 100644
--- a/ewah/ewah_io.c
+++ b/ewah/ewah_io.c
@@ -134,12 +134,9 @@ int ewah_read_mmap(struct ewah_bitmap *self, const void *map, size_t len)
 	self->buffer_size = self->alloc_size = get_be32(ptr);
 	ptr += sizeof(uint32_t);
 
-	self->buffer = ewah_realloc(self->buffer,
+	self->buffer = xrealloc(self->buffer,
 		self->alloc_size * sizeof(eword_t));
 
-	if (!self->buffer)
-		return -1;
-
 	/*
 	 * Copy the raw data for the bitmap as a whole chunk;
 	 * if we're in a little-endian platform, we'll perform
@@ -180,12 +177,9 @@ int ewah_deserialize(struct ewah_bitmap *self, int fd)
 		return -1;
 
 	self->buffer_size = self->alloc_size = (size_t)ntohl(word_count);
-	self->buffer = ewah_realloc(self->buffer,
+	self->buffer = xrealloc(self->buffer,
 		self->alloc_size * sizeof(eword_t));
 
-	if (!self->buffer)
-		return -1;
-
 	/** 64 bit x N -- compressed words */
 	buffer = self->buffer;
 	words_left = self->buffer_size;