UWB: Return UWB_RSV_ALLOC_NOT_FOUND rather than crashing on NULL dereference if kzall...

Crashing on a null pointer deref is never a nice thing to do. It seems
to me that it's better to simply return UWB_RSV_ALLOC_NOT_FOUND if
kzalloc() fails in uwb_rsv_find_best_allocation().

Signed-off-by: Jesper Juhl <[email protected]>
Acked-by: David Vrabel <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

diff --git a/drivers/uwb/allocator.c b/drivers/uwb/allocator.c
index 436e4f7110cbddc41cda3d4677fdb2eca6c0ab17..e45e673b8770e78a44b9ba0c0ace5f70122606e8 100644 (file)
--- a/drivers/uwb/allocator.c
+++ b/drivers/uwb/allocator.c
@@ -326,7 +326,8 @@ int uwb_rsv_find_best_allocation(struct uwb_rsv *rsv, struct uwb_mas_bm *availab
        int bit_index;
 
        ai = kzalloc(sizeof(struct uwb_rsv_alloc_info), GFP_KERNEL);
-       
+       if (!ai)
+               return UWB_RSV_ALLOC_NOT_FOUND;
        ai->min_mas = rsv->min_mas;
        ai->max_mas = rsv->max_mas;
        ai->max_interval = rsv->max_interval;