Commit bd05a58d authored Jul 09, 2018 by Nicholas Mc Guire Committed by Michal Simek Jul 11, 2018

microblaze: warn if of_iomap() failed



of_iomap() can return NULL. The function is void thus error propagation
is not possible but at least a WARN_ON() seems warranted here as a silent
failure might lead to a hard to understand system state.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

parent 021c9179

arch/microblaze/pci/xilinx_pci.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -157,6 +157,7 @@ void __init xilinx_pci_init(void)

		/* Set the max bus number to 255, and bus/subbus no's to 0 */
		pci_reg = of_iomap(pci_node, 0);
		WARN_ON(!pci_reg);
		out_be32(pci_reg + XPLB_PCI_BUS, 0x000000ff);
		iounmap(pci_reg);