diff options
| author | Peter Lieven <pl@kamp.de> | 2014-09-30 09:09:11 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-09-30 13:30:51 +0200 |
| commit | be4d57c1ea7f17b9cadb0150b330efd9b6026972 (patch) | |
| tree | a33f866126446d10c955a1766c1965e359105bb1 | |
| parent | 49e7e31aa00a9fb466203de19120fe5c4459cac0 (diff) | |
util: introduce bitmap_try_new
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>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | include/qemu/bitmap.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/include/qemu/bitmap.h b/include/qemu/bitmap.h index 1babd5d812..edf4f17d9c 100644 --- a/include/qemu/bitmap.h +++ b/include/qemu/bitmap.h @@ -88,10 +88,19 @@ int slow_bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1, int slow_bitmap_intersects(const unsigned long *bitmap1, const unsigned long *bitmap2, long bits); -static inline unsigned long *bitmap_new(long nbits) +static inline unsigned long *bitmap_try_new(long nbits) { long len = BITS_TO_LONGS(nbits) * sizeof(unsigned long); - return g_malloc0(len); + return g_try_malloc0(len); +} + +static inline unsigned long *bitmap_new(long nbits) +{ + unsigned long *ptr = bitmap_try_new(nbits); + if (ptr == NULL) { + abort(); + } + return ptr; } static inline void bitmap_zero(unsigned long *dst, long nbits) |