tree c5e31b36b5bf8ea37cb178eb519de587685b8643
parent 2046df24d6472a520a62d52a72d84d180b3e363c
author Cai Xinchen <caixinchen1@huawei.com> 1713250297 +0000
committer Vegard Nossum <vegard.nossum@oracle.com> 1721065473 +0000

fbdev: savage: Handle err return when savagefb_check_var failed

commit 6ad959b6703e2c4c5d7af03b4cfd5ff608036339 upstream.

The commit 04e5eac8f3ab("fbdev: savage: Error out if pixclock equals zero")
checks the value of pixclock to avoid divide-by-zero error. However
the function savagefb_probe doesn't handle the error return of
savagefb_check_var. When pixclock is 0, it will cause divide-by-zero error.

Fixes: 04e5eac8f3ab ("fbdev: savage: Error out if pixclock equals zero")
Signed-off-by: Cai Xinchen <caixinchen1@huawei.com>
Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit be754cbd77eaf2932408a4e18532e4945274a5c7)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>