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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-13 11:18:24 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-13 11:18:24 -0800
commit5266e70335dac35c35b5ca9cea4251c1389d4a68 (patch)
treec8bfdcc37b922a0978ea7aab4a43685ee9f33c3e /drivers/usb/misc
parent03f8d4cca352fd41f26b5c88dec1e4d3f507f5de (diff)
parenta9b01b5823f73dc741b623dfc52ccd68f8139b55 (diff)
downloadlinux-5266e70335dac35c35b5ca9cea4251c1389d4a68.tar.bz2
Merge tag 'tty-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial updates from Greg KH: "Here's the tty/serial patchset for 4.10-rc1. It's been a quiet kernel cycle for this subsystem, just a small number of changes. A few new serial drivers, and some cleanups to the old vgacon logic, and other minor serial driver changes as well. All of these have been in linux-next for a while with no reported issues" * tag 'tty-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (54 commits) serial: 8250_mid fix calltrace when hotplug 8250 serial controller console: Move userspace I/O out of console_lock to fix lockdep warning tty: nozomi: avoid sprintf buffer overflow serial: 8250_pci: Detach low-level driver during PCI error recovery serial: core: don't check port twice in a row mxs-auart: count FIFO overrun errors serial: 8250_dw: Add support for IrDA SIR mode serial: 8250: Expose set_ldisc function serial: 8250: Add IrDA to UART capabilities serial: 8250_dma: power off device after TX is done serial: 8250_port: export serial8250_rpm_{get|put}_tx() serial: sunsu: Free memory when probe fails serial: sunhv: Free memory when remove() is called vt: fix Scroll Lock LED trigger name tty: typo in comments in drivers/tty/vt/keyboard.c tty: amba-pl011: Add earlycon support for SBSA UART tty: nozomi: use permission-specific DEVICE_ATTR variants tty: serial: Make the STM32 serial port depend on it's arch serial: ifx6x60: Free memory when probe fails serial: ioc4_serial: Free memory when kzalloc fails during probe ...
Diffstat (limited to 'drivers/usb/misc')
-rw-r--r--drivers/usb/misc/sisusbvga/sisusb_con.c55
1 files changed, 12 insertions, 43 deletions
diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c
index 460cebf322e3..4b5777ec1501 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_con.c
+++ b/drivers/usb/misc/sisusbvga/sisusb_con.c
@@ -686,8 +686,6 @@ static void
sisusbcon_scrolldelta(struct vc_data *c, int lines)
{
struct sisusb_usb_data *sisusb;
- int margin = c->vc_size_row * 4;
- int ul, we, p, st;
sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
if (!sisusb)
@@ -700,39 +698,8 @@ sisusbcon_scrolldelta(struct vc_data *c, int lines)
return;
}
- if (!lines) /* Turn scrollback off */
- c->vc_visible_origin = c->vc_origin;
- else {
-
- if (sisusb->con_rolled_over >
- (c->vc_scr_end - sisusb->scrbuf) + margin) {
-
- ul = c->vc_scr_end - sisusb->scrbuf;
- we = sisusb->con_rolled_over + c->vc_size_row;
-
- } else {
-
- ul = 0;
- we = sisusb->scrbuf_size;
-
- }
-
- p = (c->vc_visible_origin - sisusb->scrbuf - ul + we) % we +
- lines * c->vc_size_row;
-
- st = (c->vc_origin - sisusb->scrbuf - ul + we) % we;
-
- if (st < 2 * margin)
- margin = 0;
-
- if (p < margin)
- p = 0;
-
- if (p > st - margin)
- p = st;
-
- c->vc_visible_origin = sisusb->scrbuf + (p + ul) % we;
- }
+ vc_scrolldelta_helper(c, lines, sisusb->con_rolled_over,
+ (void *)sisusb->scrbuf, sisusb->scrbuf_size);
sisusbcon_set_start_address(sisusb, c);
@@ -808,9 +775,10 @@ sisusbcon_cursor(struct vc_data *c, int mode)
mutex_unlock(&sisusb->lock);
}
-static int
+static bool
sisusbcon_scroll_area(struct vc_data *c, struct sisusb_usb_data *sisusb,
- int t, int b, int dir, int lines)
+ unsigned int t, unsigned int b, enum con_scroll dir,
+ unsigned int lines)
{
int cols = sisusb->sisusb_num_columns;
int length = ((b - t) * cols) * 2;
@@ -852,8 +820,9 @@ sisusbcon_scroll_area(struct vc_data *c, struct sisusb_usb_data *sisusb,
}
/* Interface routine */
-static int
-sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
+static bool
+sisusbcon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
+ enum con_scroll dir, unsigned int lines)
{
struct sisusb_usb_data *sisusb;
u16 eattr = c->vc_video_erase_char;
@@ -870,17 +839,17 @@ sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
*/
if (!lines)
- return 1;
+ return true;
sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
if (!sisusb)
- return 0;
+ return false;
/* sisusb->lock is down */
if (sisusb_is_inactive(c, sisusb)) {
mutex_unlock(&sisusb->lock);
- return 0;
+ return false;
}
/* Special case */
@@ -971,7 +940,7 @@ sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
mutex_unlock(&sisusb->lock);
- return 1;
+ return true;
}
/* Interface routine */