[patch] drm/radeon/r600_cs: off by one errors

All of lore.kernel.org
 help / color / mirror / Atom feed

From: Dan Carpenter <error27@gmail.com>
To: David Airlie <airlied@linux.ie>
Cc: kernel-janitors@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: [patch] drm/radeon/r600_cs: off by one errors
Date: Sat, 26 Feb 2011 01:48:18 +0000	[thread overview]
Message-ID: <20110226014818.GB18043@bicker> (raw)

There are a bunch of off by one errors in the sanity checks here.

Signed-off-by: Dan Carpenter <error27@gmail.com>

diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index 79ac676..41da786 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -159,7 +159,7 @@ static const struct gpu_formats color_formats_table[] = {
 
 static inline bool fmt_is_valid_color(u32 format)
 {
-	if (format > ARRAY_SIZE(color_formats_table))
+	if (format >= ARRAY_SIZE(color_formats_table))
 		return false;
 	
 	if (color_formats_table[format].valid_color)
@@ -170,7 +170,7 @@ static inline bool fmt_is_valid_color(u32 format)
 
 static inline bool fmt_is_valid_texture(u32 format)
 {
-	if (format > ARRAY_SIZE(color_formats_table))
+	if (format >= ARRAY_SIZE(color_formats_table))
 		return false;
 	
 	if (color_formats_table[format].blockwidth > 0)
@@ -181,7 +181,7 @@ static inline bool fmt_is_valid_texture(u32 format)
 
 static inline int fmt_get_blocksize(u32 format)
 {
-	if (format > ARRAY_SIZE(color_formats_table))
+	if (format >= ARRAY_SIZE(color_formats_table))
 		return 0;
 
 	return color_formats_table[format].blocksize;
@@ -190,7 +190,8 @@ static inline int fmt_get_blocksize(u32 format)
 static inline int fmt_get_nblocksx(u32 format, u32 w)
 {
 	unsigned bw;
-	if (format > ARRAY_SIZE(color_formats_table))
+
+	if (format >= ARRAY_SIZE(color_formats_table))
 		return 0;
 
 	bw = color_formats_table[format].blockwidth;
@@ -203,7 +204,8 @@ static inline int fmt_get_nblocksx(u32 format, u32 w)
 static inline int fmt_get_nblocksy(u32 format, u32 h)
 {
 	unsigned bh;
-	if (format > ARRAY_SIZE(color_formats_table))
+
+	if (format >= ARRAY_SIZE(color_formats_table))
 		return 0;
 
 	bh = color_formats_table[format].blockheight;
@@ -216,7 +218,8 @@ static inline int fmt_get_nblocksy(u32 format, u32 h)
 static inline int r600_bpe_from_format(u32 *bpe, u32 format)
 {
  	unsigned res;
-	if (format > ARRAY_SIZE(color_formats_table))
+
+	if (format >= ARRAY_SIZE(color_formats_table))
 		goto fail;
 
 	res = color_formats_table[format].blocksize;

WARNING: multiple messages have this Message-ID (diff)

From: Dan Carpenter <error27@gmail.com>
To: David Airlie <airlied@linux.ie>
Cc: kernel-janitors@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: [patch] drm/radeon/r600_cs: off by one errors
Date: Sat, 26 Feb 2011 04:48:18 +0300	[thread overview]
Message-ID: <20110226014818.GB18043@bicker> (raw)

There are a bunch of off by one errors in the sanity checks here.

Signed-off-by: Dan Carpenter <error27@gmail.com>

diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index 79ac676..41da786 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -159,7 +159,7 @@ static const struct gpu_formats color_formats_table[] = {
 
 static inline bool fmt_is_valid_color(u32 format)
 {
-	if (format > ARRAY_SIZE(color_formats_table))
+	if (format >= ARRAY_SIZE(color_formats_table))
 		return false;
 	
 	if (color_formats_table[format].valid_color)
@@ -170,7 +170,7 @@ static inline bool fmt_is_valid_color(u32 format)
 
 static inline bool fmt_is_valid_texture(u32 format)
 {
-	if (format > ARRAY_SIZE(color_formats_table))
+	if (format >= ARRAY_SIZE(color_formats_table))
 		return false;
 	
 	if (color_formats_table[format].blockwidth > 0)
@@ -181,7 +181,7 @@ static inline bool fmt_is_valid_texture(u32 format)
 
 static inline int fmt_get_blocksize(u32 format)
 {
-	if (format > ARRAY_SIZE(color_formats_table))
+	if (format >= ARRAY_SIZE(color_formats_table))
 		return 0;
 
 	return color_formats_table[format].blocksize;
@@ -190,7 +190,8 @@ static inline int fmt_get_blocksize(u32 format)
 static inline int fmt_get_nblocksx(u32 format, u32 w)
 {
 	unsigned bw;
-	if (format > ARRAY_SIZE(color_formats_table))
+
+	if (format >= ARRAY_SIZE(color_formats_table))
 		return 0;
 
 	bw = color_formats_table[format].blockwidth;
@@ -203,7 +204,8 @@ static inline int fmt_get_nblocksx(u32 format, u32 w)
 static inline int fmt_get_nblocksy(u32 format, u32 h)
 {
 	unsigned bh;
-	if (format > ARRAY_SIZE(color_formats_table))
+
+	if (format >= ARRAY_SIZE(color_formats_table))
 		return 0;
 
 	bh = color_formats_table[format].blockheight;
@@ -216,7 +218,8 @@ static inline int fmt_get_nblocksy(u32 format, u32 h)
 static inline int r600_bpe_from_format(u32 *bpe, u32 format)
 {
  	unsigned res;
-	if (format > ARRAY_SIZE(color_formats_table))
+
+	if (format >= ARRAY_SIZE(color_formats_table))
 		goto fail;
 
 	res = color_formats_table[format].blocksize;

next             reply	other threads:[~2011-02-26  1:48 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-26  1:48 Dan Carpenter [this message]
2011-02-26  1:48 ` [patch] drm/radeon/r600_cs: off by one errors Dan Carpenter

find likely ancestor, descendant, or conflicting patches for this message:
( dfblob:79ac676 dfblob:41da786 dfblob:79ac676 dfblob:41da786 )
 OR (
bs:"[patch] drm/radeon/r600_cs: off by one errors" )
	(help)

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=20110226014818.GB18043@bicker \
    --to=error27@gmail.com \
    --cc=airlied@linux.ie \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=kernel-janitors@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.