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[PATCH] hvc_console: Separate the NUL character filtering from get_hvc_chars

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Separate the NUL character filtering from get_hvc_chars.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Milton Miller
2005-07-07 17:56:26 -07:00
committed by Linus Torvalds
parent 030ffad23f
commit 70b234a401
2 changed files with 25 additions and 18 deletions
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drivers/char/hvc_vio.c
+23 -1
View File
@@ -43,8 +43,30 @@ static struct vio_device_id hvc_driver_table[] __devinitdata = {
};
MODULE_DEVICE_TABLE(vio, hvc_driver_table);
static int filtered_get_chars(uint32_t vtermno, char *buf, int count)
{
unsigned long got;
int i;
got = hvc_get_chars(vtermno, buf, count);
/*
* Work around a HV bug where it gives us a null
* after every \r. -- paulus
*/
for (i = 1; i < got; ++i) {
if (buf[i] == 0 && buf[i-1] == '\r') {
--got;
if (i < got)
memmove(&buf[i], &buf[i+1],
got - i);
}
}
return got;
}
static struct hv_ops hvc_get_put_ops = {
.get_chars = hvc_get_chars,
.get_chars = filtered_get_chars,
.put_chars = hvc_put_chars,
};