Displaying 3 results from an estimated 3 matches for "last_hvc".
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2012 Jun 07
7
[PATCH] xen/hvc: Fix polling mode to work with kdb/kgdb
Fix the polling section of the hvc driver to use the global "last_hvc"
variable, rather than the ttys.
With this change debugging a xen dom0 kernel is possible via the
following kernel parameter:
kgdboc=hvc0
Signed-off-by: Ben Guthro <Benjamin.Guthro@citrix.com>
diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index 2d691eb..3...
2020 Apr 05
0
[PATCH] Fix: buffer overflow during hvc_alloc().
...2c3 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -302,10 +302,6 @@ int hvc_instantiate(uint32_t vtermno, int index, const struct hv_ops *ops)
vtermnos[index] = vtermno;
cons_ops[index] = ops;
- /* reserve all indices up to and including this index */
- if (last_hvc < index)
- last_hvc = index;
-
/* check if we need to re-register the kernel console */
hvc_check_console(index);
@@ -960,13 +956,22 @@ struct hvc_struct *hvc_alloc(uint32_t vtermno, int data,
cons_ops[i] == hp->ops)
break;
- /* no matching slot, just use a counter */
- if...
2020 Apr 14
1
[PATCH v2] Fix: buffer overflow during hvc_alloc().
...2c3 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -302,10 +302,6 @@ int hvc_instantiate(uint32_t vtermno, int index, const struct hv_ops *ops)
vtermnos[index] = vtermno;
cons_ops[index] = ops;
- /* reserve all indices up to and including this index */
- if (last_hvc < index)
- last_hvc = index;
-
/* check if we need to re-register the kernel console */
hvc_check_console(index);
@@ -960,13 +956,22 @@ struct hvc_struct *hvc_alloc(uint32_t vtermno, int data,
cons_ops[i] == hp->ops)
break;
- /* no matching slot, just use a counter */
- if...