[POWERPC] boot: Simplify gunzip_finish

Call gunzip_partial to calculate the remaining length and copy the
data to the user buffer.  This makes it shorter and reduces
duplication.

Signed-off-by: Milton Miller <miltonm@bga.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 2 insertions, 5 deletions

diff --git a/arch/powerpc/boot/gunzip_util.c b/arch/powerpc/boot/gunzip_util.c
index e1e215e16983..ef2aed0f63ca 100644
--- a/arch/powerpc/boot/gunzip_util.c
+++ b/arch/powerpc/boot/gunzip_util.c
@@ -194,13 +194,10 @@ int gunzip_finish(struct gunzip_state *state, void *dst, int dstlen)
 {
         int len;
 
+        len = gunzip_partial(state, dst, dstlen);
+
         if (state->s.workspace) {
-                len = gunzip_partial(state, dst, dstlen);
                 zlib_inflateEnd(&state->s);
-        } else {
-                /* uncompressed image */
-                len = min(state->s.avail_in, (unsigned)dstlen);
-                memcpy(dst, state->s.next_in, len);
         }
 
         return len;