tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-next
head: 58c38116c6cc5bcb6d952ca72111a7a15d4604a2
commit: bcaa9d5c59005eceed5f2112c13240401f0fb93b [72/107] xhci: Create new
structures to store xhci port information
New smatch warnings:
drivers/usb/host/xhci-mem.c:2250 xhci_create_rhub_port_array() error: potential
null dereference 'rhub->ports'. (kcalloc returns null)
Old smatch warnings:
drivers/usb/host/xhci-mem.c:2280 xhci_setup_port_arrays() error: potential null
dereference 'xhci->hw_ports'. (kcalloc returns null)
vim +2250 drivers/usb/host/xhci-mem.c
2235
2236 static void xhci_create_rhub_port_array(struct xhci_hcd *xhci,
2237 struct xhci_hub *rhub, gfp_t
flags)
2238 {
2239 int port_index = 0;
2240 int i;
2241
2242 if (!rhub->num_ports)
2243 return;
2244 rhub->ports = kcalloc(rhub->num_ports, sizeof(rhub->ports),
flags);
2245 for (i = 0; i < HCS_MAX_PORTS(xhci->hcs_params1); i++) {
2246 if (xhci->hw_ports[i].rhub != rhub ||
2247 xhci->hw_ports[i].hcd_portnum == DUPLICATE_ENTRY)
2248 continue;
2249 xhci->hw_ports[i].hcd_portnum = port_index;
> 2250 rhub->ports[port_index] = &xhci->hw_ports[i];
2251 port_index++;
2252 if (port_index == rhub->num_ports)
2253 break;
2254 }
2255 }
2256
---
0-DAY kernel test infrastructure Open Source Technology Center
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