diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-13 22:18:24 +0300 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-13 22:18:24 +0300 |
commit | 5266e70335dac35c35b5ca9cea4251c1389d4a68 (patch) | |
tree | c8bfdcc37b922a0978ea7aab4a43685ee9f33c3e /drivers/usb | |
parent | 03f8d4cca352fd41f26b5c88dec1e4d3f507f5de (diff) | |
parent | a9b01b5823f73dc741b623dfc52ccd68f8139b55 (diff) | |
download | linux-5266e70335dac35c35b5ca9cea4251c1389d4a68.tar.xz |
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')
-rw-r--r-- | drivers/usb/misc/sisusbvga/sisusb_con.c | 55 |
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 */ |