linux/drivers/video
Masami Ichikawa 7a966fbd78 fbcon: Fix memory leak in con2fb_release_oldinfo()
kmemleak reported a memory leak as below.

unreferenced object 0xffff8800dab6d8d8 (size 96):
  comm "swapper/0", pid 1, jiffies 4294877598 (age 38.483s)
  hex dump (first 32 bytes):
    00 00 00 00 00 01 00 00 08 00 00 00 10 00 00 00  ................
    07 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff814e8f2e>] kmemleak_alloc+0x4e/0xb0
    [<ffffffff811a0600>] __kmalloc+0x280/0x320
    [<ffffffff81309b61>] soft_cursor+0x231/0x290
    [<ffffffff81309393>] bit_cursor+0x613/0x650
    [<ffffffff8130556b>] fbcon_cursor+0x13b/0x1c0
    [<ffffffff813755f8>] hide_cursor+0x28/0xa0
    [<ffffffff81376e98>] redraw_screen+0x168/0x240
    [<ffffffff81303891>] fbcon_prepare_logo+0x381/0x420
    [<ffffffff81303c7e>] fbcon_init+0x34e/0x590
    [<ffffffff81375828>] visual_init+0xb8/0x120
    [<ffffffff81377c93>] do_bind_con_driver+0x163/0x380
    [<ffffffff81378494>] do_take_over_console+0x114/0x1c0
    [<ffffffff81303f23>] do_fbcon_takeover+0x63/0xd0
    [<ffffffff813086dd>] fbcon_event_notify+0x68d/0x7e0
    [<ffffffff814ff7ac>] notifier_call_chain+0x4c/0x70
    [<ffffffff8108c85d>] __blocking_notifier_call_chain+0x4d/0x70

This memory leak cause is, fbcon_ops's cursor_src is allocated in
soft_cursor() but not released in con2fb_release_oldinfo().
so, cursor_src is needed to be released when oldinfo is going to be
released.

Signed-off-by: Masami Ichikawa <masami256@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-09 12:55:49 +03:00
..
backlight - Call put_device() instead of kfree() - core 2014-04-10 08:52:35 -07:00
console fbcon: Fix memory leak in con2fb_release_oldinfo() 2014-05-09 12:55:49 +03:00
fbdev video: Kconfig: Add a dependency to the Goldfish framebuffer driver 2014-05-09 12:55:48 +03:00
logo x86, platforms: Remove SGI Visual Workstation 2014-02-27 08:07:39 -08:00
display_timing.c video: add display_timing and videomode 2013-01-24 09:03:04 +01:00
hdmi.c video/hdmi: Rename HDMI_IDENTIFIER to HDMI_IEEE_OUI 2013-08-30 08:42:01 +10:00
Kconfig video: Kconfig: move drm and fb into separate menus 2014-04-17 08:10:20 +03:00
Makefile video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
of_display_timing.c video: of: display_timing: correct display-timings node finding 2013-09-26 12:31:42 +03:00
of_videomode.c videomode: videomode_from_timing work 2013-03-21 14:34:33 +02:00
vgastate.c
videomode.c videomode: videomode_from_timing work 2013-03-21 14:34:33 +02:00