bcma: only map wrapper if its address is available
The Chipcommon B core does not have a wrap address and it would fail here.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/bcma/host_soc.c b/drivers/bcma/host_soc.c
index 3475e60..1edd7e0 100644
--- a/drivers/bcma/host_soc.c
+++ b/drivers/bcma/host_soc.c
@@ -134,12 +134,16 @@
static u32 bcma_host_soc_aread32(struct bcma_device *core, u16 offset)
{
+ if (WARN_ONCE(!core->io_wrap, "Accessed core has no wrapper/agent\n"))
+ return ~0;
return readl(core->io_wrap + offset);
}
static void bcma_host_soc_awrite32(struct bcma_device *core, u16 offset,
u32 value)
{
+ if (WARN_ONCE(!core->io_wrap, "Accessed core has no wrapper/agent\n"))
+ return;
writel(value, core->io_wrap + offset);
}