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authorDmitry Kalinkin <dmitry.kalinkin@gmail.com>2015-09-18 02:01:45 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-10-04 19:50:57 +0100
commit448535a35010253f21ed913a05abe3d0adb47743 (patch)
tree6080fe2e9abfaf0124989feec16d09daa993d219 /drivers/vme
parent0b0496625715374c7d0b747268c11528e8af32a3 (diff)
downloadlinux-448535a35010253f21ed913a05abe3d0adb47743.tar.bz2
vme: print unhandled VME access errors
This will enable error messages for accesses done through mmap. Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com> Acked-by: Martyn Welch <martyn@welchs.me.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/vme')
-rw-r--r--drivers/vme/vme.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/vme/vme.c b/drivers/vme/vme.c
index 7a10d926ebb4..72924b0632b7 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);