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vme: print unhandled VME access errors

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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>
This commit is contained in:
Dmitry Kalinkin 2015-09-18 02:01:45 +03:00 committed by Greg Kroah-Hartman
parent 0b04966257
commit 448535a350
1 changed files with 7 additions and 0 deletions
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7
drivers/vme/vme.c
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@ -1028,6 +1028,7 @@ void vme_bus_error_handler(struct vme_bridge *bridge,
{ {
struct list_head *handler_pos = NULL; struct list_head *handler_pos = NULL;
struct vme_error_handler *handler; struct vme_error_handler *handler;
int handler_triggered = 0;
u32 aspace = vme_get_aspace(am); u32 aspace = vme_get_aspace(am);
list_for_each(handler_pos, &bridge->vme_error_handlers) { 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; handler->first_error = address;
if (handler->num_errors != UINT_MAX) if (handler->num_errors != UINT_MAX)
handler->num_errors++; 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); EXPORT_SYMBOL(vme_bus_error_handler);