[Qemu-devel] [PATCH 1/2] util: introduce bitmap_try_new

[Peter Lieven <pl@kamp.de>]

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 <pl@kamp.de>
---
 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