[PATCH] video: fbdev: via: check the return value of ioremap() in viafb_lcd_get_mobile_state()
From: Jia-Ju Bai <hidden>
Date: 2022-02-25 12:45:46
Also in:
lkml
Subsystem:
framebuffer layer, the rest, via unichrome(pro)/chrome9 framebuffer driver · Maintainers:
Helge Deller, Linus Torvalds, Florian Tobias Schandinat
The function ioremap() in viafb_lcd_get_mobile_state() can fail, so its
return value should be checked.
Fixes: ac6c97e20f1b ("viafb: lcd.c, lcd.h, lcdtbl.h")
Reported-by: TOTE Robot <redacted>
Signed-off-by: Jia-Ju Bai <redacted>
---
drivers/video/fbdev/via/lcd.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/video/fbdev/via/lcd.c b/drivers/video/fbdev/via/lcd.c
index 088b962076b5..9aa331a4a605 100644
--- a/drivers/video/fbdev/via/lcd.c
+++ b/drivers/video/fbdev/via/lcd.c@@ -954,6 +954,8 @@ bool viafb_lcd_get_mobile_state(bool *mobile) u16 start_pattern; biosptr = ioremap(romaddr, 0x10000); + if (!biosptr) + return false; start_pattern = readw(biosptr); /* Compare pattern */
--
2.17.1