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(parent: db65872) | patch
fbdev: viafb: check ioremap return value in viafb_lcd_get_mobile_state
authorWang Jun <1742789905@qq.com>
Tue, 10 Mar 2026 01:14:20 +0000 (09:14 +0800)
committerHelge Deller <deller@gmx.de>
Tue, 10 Mar 2026 16:32:35 +0000 (17:32 +0100)
commitf044788088ef55e9855b17b7984ffe522c40c093
tree7b99d6019779538225f1823edf21d184e2d7e2f4tree | snapshot
parentdb65872b38dc9f18a62669d6ae1e4ec7868a85a9commit | diff
fbdev: viafb: check ioremap return value in viafb_lcd_get_mobile_state

The function viafb_lcd_get_mobile_state() calls ioremap() without
checking the return value. If ioremap() fails (returns NULL), the
subsequent readw() will cause a NULL pointer dereference.

Signed-off-by: Wang Jun <1742789905@qq.com>
Signed-off-by: Helge Deller <deller@gmx.de>
drivers/video/fbdev/via/lcd.c diff | blob | blame | history
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