diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-31 07:19:25 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-31 07:19:25 +0200 |
| commit | 8f49a2fe8e6bccbd47555048def9cd08da220c74 (patch) | |
| tree | e6ba7f2cc36b03503b6070668ee6720002111ca2 /drivers/tty/vt | |
| parent | serial: 8250_pci: Add WCH384_8S 8 port serial device (diff) | |
| parent | Linux 5.9-rc3 (diff) | |
| download | linux-8f49a2fe8e6bccbd47555048def9cd08da220c74.tar.xz linux-8f49a2fe8e6bccbd47555048def9cd08da220c74.zip | |
Merge 5.9-rc3 into tty-next
We need the tty/serial fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/vt')
| -rw-r--r-- | drivers/tty/vt/vt.c | 11 | ||||
| -rw-r--r-- | drivers/tty/vt/vt_ioctl.c | 12 |
2 files changed, 17 insertions, 6 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index 71f972675fee..9506a76f3ab6 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -1201,7 +1201,7 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc, unsigned int old_rows, old_row_size, first_copied_row; unsigned int new_cols, new_rows, new_row_size, new_screen_size; unsigned int user; - unsigned short *newscreen; + unsigned short *oldscreen, *newscreen; struct uni_screen *new_uniscr = NULL; WARN_CONSOLE_UNLOCKED(); @@ -1299,10 +1299,11 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc, if (new_scr_end > new_origin) scr_memsetw((void *)new_origin, vc->vc_video_erase_char, new_scr_end - new_origin); - kfree(vc->vc_screenbuf); + oldscreen = vc->vc_screenbuf; vc->vc_screenbuf = newscreen; vc->vc_screenbuf_size = new_screen_size; set_origin(vc); + kfree(oldscreen); /* do part of a reset_terminal() */ vc->vc_top = 0; @@ -1553,7 +1554,7 @@ static void csi_J(struct vc_data *vc, int vpar) break; case 3: /* include scrollback */ flush_scrollback(vc); - /* fallthrough */ + fallthrough; case 2: /* erase whole display */ vc_uniscr_clear_lines(vc, 0, vc->vc_rows); count = vc->vc_cols * vc->vc_rows; @@ -2169,7 +2170,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c) lf(vc); if (!is_kbd(vc, lnm)) return; - /* fall through */ + fallthrough; case 13: cr(vc); return; @@ -2308,7 +2309,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c) return; } vc->vc_priv = EPecma; - /* fall through */ + fallthrough; case ESgetpars: if (c == ';' && vc->vc_npar < NPAR - 1) { vc->vc_npar++; diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c index 7726df6b9b6f..2ea76a09e07f 100644 --- a/drivers/tty/vt/vt_ioctl.c +++ b/drivers/tty/vt/vt_ioctl.c @@ -805,12 +805,22 @@ static int vt_resizex(struct vc_data *vc, struct vt_consize __user *cs) console_lock(); vcp = vc_cons[i].d; if (vcp) { + int ret; + int save_scan_lines = vcp->vc_scan_lines; + int save_font_height = vcp->vc_font.height; + if (v.v_vlin) vcp->vc_scan_lines = v.v_vlin; if (v.v_clin) vcp->vc_font.height = v.v_clin; vcp->vc_resize_user = 1; - vc_resize(vcp, v.v_cols, v.v_rows); + ret = vc_resize(vcp, v.v_cols, v.v_rows); + if (ret) { + vcp->vc_scan_lines = save_scan_lines; + vcp->vc_font.height = save_font_height; + console_unlock(); + return ret; + } } console_unlock(); } |