From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: [PATCH] video: fbdev: pvr2fb: remove unnecessary comparison of unsigned integer with < 0
Date: Mon, 22 Jul 2019 20:33:58 +0000 [thread overview]
Message-ID: <20190722203358.GA29111@embeddedor> (raw)
There is no need to compare *var->xoffset* or *var->yoffset* with < 0
because such variables are of type unsigned, making it impossible to
hold a negative value.
Fix this by removing such comparisons.
Addresses-Coverity-ID: 1451964 ("Unsigned compared against 0")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
drivers/video/fbdev/pvr2fb.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/video/fbdev/pvr2fb.c b/drivers/video/fbdev/pvr2fb.c
index 7ff4b6b84282..0a3b2b7c7891 100644
--- a/drivers/video/fbdev/pvr2fb.c
+++ b/drivers/video/fbdev/pvr2fb.c
@@ -458,13 +458,11 @@ static int pvr2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
set_color_bitfields(var);
if (var->vmode & FB_VMODE_YWRAP) {
- if (var->xoffset || var->yoffset < 0 ||
- var->yoffset >= var->yres_virtual) {
+ if (var->xoffset || var->yoffset >= var->yres_virtual) {
var->xoffset = var->yoffset = 0;
} else {
if (var->xoffset > var->xres_virtual - var->xres ||
- var->yoffset > var->yres_virtual - var->yres ||
- var->xoffset < 0 || var->yoffset < 0)
+ var->yoffset > var->yres_virtual - var->yres)
var->xoffset = var->yoffset = 0;
}
} else {
--
2.22.0
WARNING: multiple messages have this Message-ID (diff)
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: [PATCH] video: fbdev: pvr2fb: remove unnecessary comparison of unsigned integer with < 0
Date: Mon, 22 Jul 2019 15:33:58 -0500 [thread overview]
Message-ID: <20190722203358.GA29111@embeddedor> (raw)
There is no need to compare *var->xoffset* or *var->yoffset* with < 0
because such variables are of type unsigned, making it impossible to
hold a negative value.
Fix this by removing such comparisons.
Addresses-Coverity-ID: 1451964 ("Unsigned compared against 0")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
drivers/video/fbdev/pvr2fb.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/video/fbdev/pvr2fb.c b/drivers/video/fbdev/pvr2fb.c
index 7ff4b6b84282..0a3b2b7c7891 100644
--- a/drivers/video/fbdev/pvr2fb.c
+++ b/drivers/video/fbdev/pvr2fb.c
@@ -458,13 +458,11 @@ static int pvr2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
set_color_bitfields(var);
if (var->vmode & FB_VMODE_YWRAP) {
- if (var->xoffset || var->yoffset < 0 ||
- var->yoffset >= var->yres_virtual) {
+ if (var->xoffset || var->yoffset >= var->yres_virtual) {
var->xoffset = var->yoffset = 0;
} else {
if (var->xoffset > var->xres_virtual - var->xres ||
- var->yoffset > var->yres_virtual - var->yres ||
- var->xoffset < 0 || var->yoffset < 0)
+ var->yoffset > var->yres_virtual - var->yres)
var->xoffset = var->yoffset = 0;
}
} else {
--
2.22.0
next reply other threads:[~2019-07-22 20:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20190722203403epcas2p32d13bdd6f29bed37696385baca909abf@epcas2p3.samsung.com>
2019-07-22 20:33 ` Gustavo A. R. Silva [this message]
2019-07-22 20:33 ` [PATCH] video: fbdev: pvr2fb: remove unnecessary comparison of unsigned integer with < 0 Gustavo A. R. Silva
2019-08-19 14:01 ` Bartlomiej Zolnierkiewicz
2019-08-19 14:01 ` Bartlomiej Zolnierkiewicz
2019-08-19 14:01 ` Bartlomiej Zolnierkiewicz
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190722203358.GA29111@embeddedor \
--to=gustavo@embeddedor.com \
--cc=b.zolnierkie@samsung.com \
--cc=dri-devel@lists.freedesktop.org \
--cc=linux-fbdev@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.