[PATCH 0/7] Fix divide errors in fbdev drivers

From: Zheyu Ma
Date: Mon Apr 04 2022 - 04:48:10 EST


None of these framebuffer drivers checks for 'pixclock', leading to many
divide errors, which we fix by checking the value of 'pixclock' in
*_check_var(). As discussed before, it is better to keep the check per
driver rather than in the caller.

https://lore.kernel.org/all/YPgbHMtLQqb1kP0l@xxxxxxxxxxxx/

Zheyu Ma (7):
video: fbdev: i740fb: Error out if 'pixclock' equals zero
video: fbdev: neofb: Fix the check of 'var->pixclock'
video: fbdev: kyro: Error out if 'lineclock' equals zero
video: fbdev: vt8623fb: Error out if 'pixclock' equals zero
video: fbdev: tridentfb: Error out if 'pixclock' equals zero
video: fbdev: arkfb: Error out if 'pixclock' equals zero
video: fbdev: s3fb: Error out if 'pixclock' equals zero

drivers/video/fbdev/arkfb.c | 3 +++
drivers/video/fbdev/i740fb.c | 3 +++
drivers/video/fbdev/kyro/fbdev.c | 2 ++
drivers/video/fbdev/neofb.c | 2 +-
drivers/video/fbdev/s3fb.c | 3 +++
drivers/video/fbdev/tridentfb.c | 3 +++
drivers/video/fbdev/vt8623fb.c | 3 +++
7 files changed, 18 insertions(+), 1 deletion(-)

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2.25.1