From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: Helge Deller <deller@gmx.de>,
qemu-devel@nongnu.org, Sven Schnelle <svens@stackframe.org>
Cc: "Philippe Mathieu-Daudé" <f4bug@amsat.org>,
"Gerd Hoffmann" <kraxel@redhat.com>,
"Richard Henderson" <rth@twiddle.net>
Subject: [PATCH 5/5] hw/display/artist: Remove dead code (CID 1419388 & 1419389)
Date: Fri, 14 Feb 2020 01:13:02 +0100 [thread overview]
Message-ID: <20200214001303.12873-6-f4bug@amsat.org> (raw)
In-Reply-To: <20200214001303.12873-1-f4bug@amsat.org>
Coverity reports:
*** CID 1419388: Control flow issues (DEADCODE)
/hw/display/artist.c: 739 in draw_line_xy()
733 if (endy < 0) {
734 endy = 0;
735 }
736
737
738 if (endx < 0) {
>>> CID 1419388: Control flow issues (DEADCODE)
>>> Execution cannot reach this statement: "return;".
739 return;
740 }
741
742 if (endy < 0) {
743 return;
744 }
*** CID 1419389: Control flow issues (DEADCODE)
/hw/display/artist.c: 743 in draw_line_xy()
737
738 if (endx < 0) {
739 return;
740 }
741
742 if (endy < 0) {
>>> CID 1419389: Control flow issues (DEADCODE)
>>> Execution cannot reach this statement: "return;".
743 return;
744 }
745
746 trace_artist_draw_line(startx, starty, endx, endy);
747 draw_line(s, startx, starty, endx, endy, false, -1, -1);
748 }
Fixes: Covertiy CID 1419388 and 1419389 (commit 4765384ce33)
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
hw/display/artist.c | 9 ---------
1 file changed, 9 deletions(-)
diff --git a/hw/display/artist.c b/hw/display/artist.c
index 5492079116..753dbb9a77 100644
--- a/hw/display/artist.c
+++ b/hw/display/artist.c
@@ -690,59 +690,50 @@ static void draw_line_size(ARTISTState *s, bool update_start)
static void draw_line_xy(ARTISTState *s, bool update_start)
{
int startx = artist_get_x(s->vram_start);
int starty = artist_get_y(s->vram_start);
int sizex = artist_get_x(s->blockmove_size);
int sizey = artist_get_y(s->blockmove_size);
int linexy = s->line_xy >> 16;
int endx, endy;
endx = startx;
endy = starty;
if (sizex > 0) {
endx = startx + linexy;
}
if (sizex < 0) {
endx = startx;
startx -= linexy;
}
if (sizey > 0) {
endy = starty + linexy;
}
if (sizey < 0) {
endy = starty;
starty -= linexy;
}
if (startx < 0) {
startx = 0;
}
if (endx < 0) {
endx = 0;
}
if (starty < 0) {
starty = 0;
}
if (endy < 0) {
endy = 0;
}
-
- if (endx < 0) {
- return;
- }
-
- if (endy < 0) {
- return;
- }
-
draw_line(s, startx, starty, endx, endy, false, -1, -1);
}
--
2.21.1
next prev parent reply other threads:[~2020-02-14 0:15 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-14 0:12 [PATCH 0/5] hw/display/artist: Fix Coverity 1419388 & 1419389 Philippe Mathieu-Daudé
2020-02-14 0:12 ` [PATCH 1/5] hw/display/artist: Move trace event to draw_line() Philippe Mathieu-Daudé
2020-02-15 9:12 ` Sven Schnelle
2020-02-14 0:12 ` [PATCH 2/5] hw/display/artist: Remove pointless initialization Philippe Mathieu-Daudé
2020-02-15 9:12 ` Sven Schnelle
2020-02-14 0:13 ` [PATCH 3/5] hw/display/artist: Delay some variables initialization Philippe Mathieu-Daudé
2020-02-15 9:12 ` Sven Schnelle
2020-02-14 0:13 ` [RFC PATCH 4/5] hw/display/artist: Avoid drawing line when nothing to display Philippe Mathieu-Daudé
2020-02-14 0:13 ` Philippe Mathieu-Daudé [this message]
2020-02-15 9:11 ` [PATCH 5/5] hw/display/artist: Remove dead code (CID 1419388 & 1419389) Sven Schnelle
2020-02-16 1:45 ` [PATCH 0/5] hw/display/artist: Fix Coverity 1419388 & 1419389 Richard Henderson
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