linux_dsm_epyc7002/drivers/video
Jia-Ju Bai 86c4e7c350 video: fbdev: aty: aty128fb: Replace mdelay with msleep in aty128_set_suspend
aty128_set_suspend() is never called in atomic context.

The call chains ending up at aty128_set_suspend() are:
[1] aty128_set_suspend() <- aty128_pci_suspend()
[2] aty128_set_suspend() <- aty128_do_resume() <- aty128_pci_resume()
[3] aty128_set_suspend() <- aty128_do_resume() <- aty128_early_resume()

aty128_pci_suspend() is set as ".suspend" in struct pci_driver.
aty128_pci_resume() is set as ".resume" in struct pci_driver.
aty128_early_resume() is never called.
These functions are not called in atomic context.

Despite never getting called from atomic context, aty128_set_suspend()
calls mdelay() to busily wait.
This is not necessary and can be replaced with msleep() to
avoid busy waiting.

This is found by a static analysis tool named DCNS written by myself.
And I also manually check it.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-04-24 18:11:21 +02:00
..
backlight This contains the backlight portion of Meghana Madhyastha's patch set to 2018-02-20 10:33:05 -05:00
console fbdev changes for v4.17: 2018-04-10 10:20:00 -07:00
fbdev video: fbdev: aty: aty128fb: Replace mdelay with msleep in aty128_set_suspend 2018-04-24 18:11:21 +02:00
logo video/logo: remove obsolete logo files 2018-03-26 15:56:42 +02:00
display_timing.c
hdmi.c video/hdmi: Allow "empty" HDMI infoframes 2017-11-22 16:55:35 +02:00
Kconfig fbdev changes for v4.17: 2018-04-10 10:20:00 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
of_display_timing.c video: of: display_timing: Remove of_display_timings_exist() function 2018-03-12 17:06:54 +01:00
of_videomode.c video: fbdev: Convert to using %pOF instead of full_name 2017-08-07 17:22:13 +02:00
vgastate.c fbdev: vgastate: remove trailing whitespaces 2015-01-13 12:53:25 +02:00
videomode.c