[PATCH 2/2] video: fbdev: amifb: add FIXMEs about {put,get}_user() failures

Bartlomiej Zolnierkiewicz b.zolnierkie at samsung.com
Tue Jun 2 10:38:18 UTC 2020


Since we lack the hardware (or proper emulator setup) for
testing needed changes add FIXMEs to document the issues
(so at least they are not forgotten).

Cc: Al Viro <viro at zeniv.linux.org.uk>
Cc: Geert Uytterhoeven <geert at linux-m68k.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie at samsung.com>
---
 drivers/video/fbdev/amifb.c |    2 ++
 1 file changed, 2 insertions(+)

Index: b/drivers/video/fbdev/amifb.c
===================================================================
--- a/drivers/video/fbdev/amifb.c
+++ b/drivers/video/fbdev/amifb.c
@@ -1866,6 +1866,7 @@ static int ami_get_var_cursorinfo(struct
 				"clrb %0 ; swap %1 ; lslw #1,%1 ; roxlb #1,%0 ; "
 				"swap %1 ; lslw #1,%1 ; roxlb #1,%0"
 				: "=d" (color), "=d" (datawords) : "1" (datawords));
+			/* FIXME: check the return value + test the change */
 			put_user(color, data++);
 		}
 		if (bits > 0) {
@@ -1923,6 +1924,7 @@ static int ami_set_var_cursorinfo(struct
 		bits = 16; words = delta; datawords = 0;
 		for (width = (short)var->width - 1; width >= 0; width--) {
 			unsigned long tdata = 0;
+			/* FIXME: check the return value + test the change */
 			get_user(tdata, data);
 			data++;
 			asm volatile (


More information about the dri-devel mailing list