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| author | Maciej S. Szmigiero <maciej.szmigiero@oracle.com> | 2023-11-09 16:59:11 +0100 |
|---|---|---|
| committer | Maciej S. Szmigiero <maciej.szmigiero@oracle.com> | 2024-03-08 14:18:56 +0100 |
| commit | 1d3b82eabb1ad6b6fdeae0d94f2fb37506a351af (patch) | |
| tree | 126c94c32bf1b2cf11b28daea93b4a809204cba3 /hw/hyperv | |
| parent | 8f6330a807f2642dc2a3cdf33347aa28a4c00a87 (diff) | |
| download | qemu-1d3b82eabb1ad6b6fdeae0d94f2fb37506a351af.zip qemu-1d3b82eabb1ad6b6fdeae0d94f2fb37506a351af.tar.gz qemu-1d3b82eabb1ad6b6fdeae0d94f2fb37506a351af.tar.bz2 | |
hv-balloon: avoid alloca() usage
alloca() is frowned upon, replace it with g_malloc0() + g_autofree.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Diffstat (limited to 'hw/hyperv')
| -rw-r--r-- | hw/hyperv/hv-balloon.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/hw/hyperv/hv-balloon.c b/hw/hyperv/hv-balloon.c index ade2833..35333da 100644 --- a/hw/hyperv/hv-balloon.c +++ b/hw/hyperv/hv-balloon.c @@ -366,7 +366,7 @@ static void hv_balloon_unballoon_posting(HvBalloon *balloon, StateDesc *stdesc) PageRangeTree dtree; uint64_t *dctr; bool our_range; - struct dm_unballoon_request *ur; + g_autofree struct dm_unballoon_request *ur = NULL; size_t ur_size = sizeof(*ur) + sizeof(ur->range_array[0]); PageRange range; bool bret; @@ -388,8 +388,7 @@ static void hv_balloon_unballoon_posting(HvBalloon *balloon, StateDesc *stdesc) assert(dtree.t); assert(dctr); - ur = alloca(ur_size); - memset(ur, 0, ur_size); + ur = g_malloc0(ur_size); ur->hdr.type = DM_UNBALLOON_REQUEST; ur->hdr.size = ur_size; ur->hdr.trans_id = balloon->trans_id; @@ -531,7 +530,7 @@ static void hv_balloon_hot_add_posting(HvBalloon *balloon, StateDesc *stdesc) PageRange *hot_add_range = &balloon->hot_add_range; uint64_t *current_count = &balloon->ha_current_count; VMBusChannel *chan = hv_balloon_get_channel(balloon); - struct dm_hot_add *ha; + g_autofree struct dm_hot_add *ha = NULL; size_t ha_size = sizeof(*ha) + sizeof(ha->range); union dm_mem_page_range *ha_region; uint64_t align, chunk_max_size; @@ -560,9 +559,8 @@ static void hv_balloon_hot_add_posting(HvBalloon *balloon, StateDesc *stdesc) */ *current_count = MIN(hot_add_range->count, chunk_max_size); - ha = alloca(ha_size); + ha = g_malloc0(ha_size); ha_region = &(&ha->range)[1]; - memset(ha, 0, ha_size); ha->hdr.type = DM_MEM_HOT_ADD_REQUEST; ha->hdr.size = ha_size; ha->hdr.trans_id = balloon->trans_id; |