From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
To: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org,
linux-m68k <linux-m68k@lists.linux-m68k.org>,
Al Viro <viro@zeniv.linux.org.uk>,
Geert Uytterhoeven <geert@linux-m68k.org>
Subject: [PATCH 2/2] video: fbdev: amifb: add FIXMEs about {put,get}_user() failures
Date: Tue, 2 Jun 2020 12:38:18 +0200 [thread overview]
Message-ID: <a514e3bf-2e1a-ff4d-5529-3e918d067d5e@samsung.com> (raw)
In-Reply-To: <b1cf967015c5beafa475aaa30d8e21a58caff870.camel@perches.com>
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@zeniv.linux.org.uk>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@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 (
next prev parent reply other threads:[~2020-06-02 10:38 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20200504232908eucas1p296927bc7c736ad924cefaea9a546459d@eucas1p2.samsung.com>
2020-05-04 23:29 ` [trivial PATCH] video: fbdev: Use IS_BUILTIN Joe Perches
2020-06-01 13:25 ` Bartlomiej Zolnierkiewicz
2020-06-02 10:37 ` [PATCH 1/2] video: fbdev: amifb: remove dead APUS support Bartlomiej Zolnierkiewicz
2020-06-02 10:41 ` John Paul Adrian Glaubitz
2020-06-02 11:04 ` Geert Uytterhoeven
2020-06-02 11:07 ` John Paul Adrian Glaubitz
2020-06-02 11:27 ` Bartlomiej Zolnierkiewicz
2020-06-15 20:35 ` Emil Velikov
2020-06-15 21:26 ` Geert Uytterhoeven
2020-06-02 10:38 ` Bartlomiej Zolnierkiewicz [this message]
2020-06-02 11:50 ` [PATCH v2 1/2] video: fbdev: amifb: add FIXME about " Bartlomiej Zolnierkiewicz
2020-06-02 12:03 ` Geert Uytterhoeven
2020-06-02 16:12 ` Al Viro
2020-06-03 0:20 ` Finn Thain
2020-07-10 14:23 ` Bartlomiej Zolnierkiewicz
2020-06-02 11:52 ` [PATCH v2 2/2] video: fbdev: amifb: add FIXMEs about {put,get}_user() failures Bartlomiej Zolnierkiewicz
2020-06-02 12:03 ` Geert Uytterhoeven
2020-07-10 14:23 ` Bartlomiej Zolnierkiewicz
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