From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40485) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XKl7T-00057C-ER for qemu-devel@nongnu.org; Fri, 22 Aug 2014 05:26:57 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XKl7N-00031b-7H for qemu-devel@nongnu.org; Fri, 22 Aug 2014 05:26:51 -0400 Received: from mx-v6.kamp.de ([2a02:248:0:51::16]:49072 helo=mx01.kamp.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XKl7M-00031K-S2 for qemu-devel@nongnu.org; Fri, 22 Aug 2014 05:26:45 -0400 From: Peter Lieven Date: Fri, 22 Aug 2014 11:26:06 +0200 Message-Id: <1408699567-6940-2-git-send-email-pl@kamp.de> In-Reply-To: <1408699567-6940-1-git-send-email-pl@kamp.de> References: <1408699567-6940-1-git-send-email-pl@kamp.de> Subject: [Qemu-devel] [PATCH 1/2] util: introduce bitmap_try_new List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com, pbonzini@redhat.com, Peter Lieven , stefanha@redhat.com regular bitmap_new simply aborts if the memory allocation fails. bitmap_try_new returns NULL on failure and allows for proper error handling. Signed-off-by: Peter Lieven --- include/qemu/bitmap.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/qemu/bitmap.h b/include/qemu/bitmap.h index 1babd5d..51b430f 100644 --- a/include/qemu/bitmap.h +++ b/include/qemu/bitmap.h @@ -94,6 +94,12 @@ static inline unsigned long *bitmap_new(long nbits) return g_malloc0(len); } +static inline unsigned long *bitmap_try_new(long nbits) +{ + long len = BITS_TO_LONGS(nbits) * sizeof(unsigned long); + return g_try_malloc0(len); +} + static inline void bitmap_zero(unsigned long *dst, long nbits) { if (small_nbits(nbits)) { -- 1.7.9.5