On 18/09/15 00:01, dmitry.kalinkin@xxxxxxxxx wrote:
From: Dmitry Kalinkin <dmitry.kalinkin@xxxxxxxxx>
This will enable error messages for accesses done through mmap.
Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@xxxxxxxxx>
Acked-by: Martyn Welch <martyn@xxxxxxxxxxxx>
---
drivers/vme/vme.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/vme/vme.c b/drivers/vme/vme.c
index 7a10d92..72924b0 100644
--- a/drivers/vme/vme.c
+++ b/drivers/vme/vme.c
@@ -1028,6 +1028,7 @@ void vme_bus_error_handler(struct vme_bridge *bridge,
{
struct list_head *handler_pos = NULL;
struct vme_error_handler *handler;
+ int handler_triggered = 0;
u32 aspace = vme_get_aspace(am);
list_for_each(handler_pos, &bridge->vme_error_handlers) {
@@ -1040,8 +1041,14 @@ void vme_bus_error_handler(struct vme_bridge *bridge,
handler->first_error = address;
if (handler->num_errors != UINT_MAX)
handler->num_errors++;
+ handler_triggered = 1;
}
}
+
+ if (!handler_triggered)
+ dev_err(bridge->parent,
+ "Unhandled VME access error at address 0x%llx\n",
+ address);
}
EXPORT_SYMBOL(vme_bus_error_handler);
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