X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=xdiff-interface.c;fp=xdiff-interface.c;h=d8ba7e725fd30f2dde51a2b45ed0b6c9292bfce0;hb=381b851c9b010147bb1fa83a013b7c8f60419026;hp=4b8e5cca804198b0e227454a585fa025281bbe2d;hpb=1affea4f629537fd48e3bd66de89a6f45d0fcd82;p=git.git

diff --git a/xdiff-interface.c b/xdiff-interface.c
index 4b8e5cca8..d8ba7e725 100644
--- a/xdiff-interface.c
+++ b/xdiff-interface.c
@@ -152,8 +152,8 @@ int read_mmfile(mmfile_t *ptr, const char *filename)
 	if ((f = fopen(filename, "rb")) == NULL)
 		return error("Could not open %s", filename);
 	sz = xsize_t(st.st_size);
-	ptr->ptr = xmalloc(sz);
-	if (fread(ptr->ptr, sz, 1, f) != 1)
+	ptr->ptr = xmalloc(sz ? sz : 1);
+	if (sz && fread(ptr->ptr, sz, 1, f) != 1)
 		return error("Could not read %s", filename);
 	fclose(f);
 	ptr->size = sz;