From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36861) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fM1sc-0002Ad-57 for qemu-devel@nongnu.org; Thu, 24 May 2018 21:50:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fM1sX-0007oK-7Z for qemu-devel@nongnu.org; Thu, 24 May 2018 21:50:54 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:50626 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fM1sX-0007oA-3U for qemu-devel@nongnu.org; Thu, 24 May 2018 21:50:49 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 4EA69401EF2C for ; Fri, 25 May 2018 01:50:48 +0000 (UTC) From: Peter Xu Date: Fri, 25 May 2018 09:50:42 +0800 Message-Id: <20180525015042.31778-1-peterx@redhat.com> Subject: [Qemu-devel] [PATCH] migration: use g_free for ram load bitmap List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Juan Quintela , "Dr . David Alan Gilbert" , peterx@redhat.com Buffers allocated with bitmap_new() should be freed with g_free(). Both reported by Coverity: *** CID 1391300: API usage errors (ALLOC_FREE_MISMATCH) /migration/ram.c: 3517 in ram_dirty_bitmap_reload() 3511 * the last one to sync, we need to notify the main send thread. 3512 */ 3513 ram_dirty_bitmap_reload_notify(s); 3514 3515 ret = 0; 3516 out: >>> CID 1391300: API usage errors (ALLOC_FREE_MISMATCH) >>> Calling "free" frees "le_bitmap" using "free" but it should have been freed using "g_free". 3517 free(le_bitmap); 3518 return ret; 3519 } 3520 3521 static int ram_resume_prepare(MigrationState *s, void *opaque) 3522 { *** CID 1391292: API usage errors (ALLOC_FREE_MISMATCH) /migration/ram.c: 249 in ramblock_recv_bitmap_send() 243 * Mark as an end, in case the middle part is screwed up due to 244 * some "misterious" reason. 245 */ 246 qemu_put_be64(file, RAMBLOCK_RECV_BITMAP_ENDING); 247 qemu_fflush(file); 248 >>> CID 1391292: API usage errors (ALLOC_FREE_MISMATCH) >>> Calling "free" frees "le_bitmap" using "free" but it should have been freed using "g_free". 249 free(le_bitmap); 250 251 if (qemu_file_get_error(file)) { 252 return qemu_file_get_error(file); 253 } 254 Signed-off-by: Peter Xu --- migration/ram.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/migration/ram.c b/migration/ram.c index 5bcbf7a9f9..c53e8369a3 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -246,7 +246,7 @@ int64_t ramblock_recv_bitmap_send(QEMUFile *file, qemu_put_be64(file, RAMBLOCK_RECV_BITMAP_ENDING); qemu_fflush(file); - free(le_bitmap); + g_free(le_bitmap); if (qemu_file_get_error(file)) { return qemu_file_get_error(file); @@ -3514,7 +3514,7 @@ int ram_dirty_bitmap_reload(MigrationState *s, RAMBlock *block) ret = 0; out: - free(le_bitmap); + g_free(le_bitmap); return ret; } -- 2.17.0