From: kbuild test robot <lkp@xxxxxxxxx>
drivers/pci/controller/pci-hyperv.c:2925:9-32: WARNING: casting value returned by memory allocation function to (struct hv_pcibus_device *) is useless.
Remove casting the values returned by memory allocation functions
like kmalloc, kzalloc, kmem_cache_alloc, kmem_cache_zalloc etc.
Semantic patch information:
This makes an effort to find cases of casting of values returned by
kmalloc, kzalloc, kcalloc, kmem_cache_alloc, kmem_cache_zalloc,
kmem_cache_alloc_node, kmalloc_node and kzalloc_node and removes
the casting as it is not required. The result in the patch case may
need some reformatting.
Generated by: scripts/coccinelle/api/alloc/alloc_cast.cocci
Fixes: 877b911a5ba0 ("PCI: hv: Avoid a kmemleak false positive caused by the hbus buffer")
CC: Dexuan Cui <decui@xxxxxxxxxxxxx>
Signed-off-by: kbuild test robot <lkp@xxxxxxxxx>
---
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 1ab75b2e415a29dba9aec94f203c6f88dbfc0ba0
commit: 877b911a5ba0733f62239055ee869f2e117b57da [13591/14582] PCI: hv: Avoid a kmemleak false positive caused by the hbus buffer
pci-hyperv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/pci/controller/pci-hyperv.c
+++ b/drivers/pci/controller/pci-hyperv.c
@@ -2922,7 +2922,7 @@ static int hv_pci_probe(struct hv_device
* positive by using kmemleak_alloc() and kmemleak_free() to ask
* kmemleak to track and scan the hbus buffer.
*/
- hbus = (struct hv_pcibus_device *)kzalloc(HV_HYP_PAGE_SIZE, GFP_KERNEL);
+ hbus = kzalloc(HV_HYP_PAGE_SIZE, GFP_KERNEL);
if (!hbus)
return -ENOMEM;
hbus->state = hv_pcibus_init;
