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Commit a7134de6 authored by Wei Chen's avatar Wei Chen Committed by Greg Kroah-Hartman
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fbdev: lxfb: Fix potential divide by zero



[ Upstream commit 61ac4b86a4c047c20d5cb423ddd87496f14d9868 ]

var->pixclock can be assigned to zero by user. Without proper
check, divide by zero would occur in lx_set_clock.

Error out if var->pixclock is zero.

Signed-off-by: default avatarWei Chen <harperchen1110@gmail.com>
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 2961c0bd
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