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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Antonino Daplas <adaplas@gmail.com>
Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [PATCH] fbdev: savagefb: make a variable local
Date: Fri, 3 Dec 2021 12:57:15 +0300	[thread overview]
Message-ID: <20211203095715.GD2480@kili> (raw)

The "edid" struct member is only used during probe() and it's freed
right away.  There is no point in storing a freed pointer for the
whole life of the driver.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/video/fbdev/savage/savagefb.h | 1 -
 drivers/video/fbdev/savage/savagefb_driver.c | 7 ++++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/video/fbdev/savage/savagefb.h b/drivers/video/fbdev/savage/savagefb.h
index 3314d5b6b43b..b6b8cc208293 100644
--- a/drivers/video/fbdev/savage/savagefb.h
+++ b/drivers/video/fbdev/savage/savagefb.h
@@ -195,7 +195,6 @@ struct savagefb_par {
 	struct savage_reg initial;
 	struct vgastate vgastate;
 	struct mutex open_lock;
-	unsigned char   *edid;
 	u32 pseudo_palette[16];
 	u32 open_count;
 	int paletteEnabled;
diff --git a/drivers/video/fbdev/savage/savagefb_driver.c b/drivers/video/fbdev/savage/savagefb_driver.c
index 0ac750cc5ea1..b9110220c0e0 100644
--- a/drivers/video/fbdev/savage/savagefb_driver.c
+++ b/drivers/video/fbdev/savage/savagefb_driver.c
@@ -2170,6 +2170,7 @@ static int savagefb_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	struct fb_info *info;
 	struct savagefb_par *par;
 	u_int h_sync, v_sync;
+	unsigned char *edid;
 	int err, lpitch;
 	int video_len;
 
@@ -2212,9 +2213,9 @@ static int savagefb_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	INIT_LIST_HEAD(&info->modelist);
 #if defined(CONFIG_FB_SAVAGE_I2C)
 	savagefb_create_i2c_busses(info);
-	savagefb_probe_i2c_connector(info, &par->edid);
-	fb_edid_to_monspecs(par->edid, &info->monspecs);
-	kfree(par->edid);
+	savagefb_probe_i2c_connector(info, &edid);
+	fb_edid_to_monspecs(edid, &info->monspecs);
+	kfree(edid);
 	fb_videomode_to_modelist(info->monspecs.modedb,
 				 info->monspecs.modedb_len,
 				 &info->modelist);

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Antonino Daplas <adaplas@gmail.com>
Cc: linux-fbdev@vger.kernel.org, kernel-janitors@vger.kernel.org,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: [PATCH] fbdev: savagefb: make a variable local
Date: Fri, 3 Dec 2021 12:57:15 +0300	[thread overview]
Message-ID: <20211203095715.GD2480@kili> (raw)

The "edid" struct member is only used during probe() and it's freed
right away.  There is no point in storing a freed pointer for the
whole life of the driver.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/video/fbdev/savage/savagefb.h | 1 -
 drivers/video/fbdev/savage/savagefb_driver.c | 7 ++++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/video/fbdev/savage/savagefb.h b/drivers/video/fbdev/savage/savagefb.h
index 3314d5b6b43b..b6b8cc208293 100644
--- a/drivers/video/fbdev/savage/savagefb.h
+++ b/drivers/video/fbdev/savage/savagefb.h
@@ -195,7 +195,6 @@ struct savagefb_par {
 	struct savage_reg initial;
 	struct vgastate vgastate;
 	struct mutex open_lock;
-	unsigned char   *edid;
 	u32 pseudo_palette[16];
 	u32 open_count;
 	int paletteEnabled;
diff --git a/drivers/video/fbdev/savage/savagefb_driver.c b/drivers/video/fbdev/savage/savagefb_driver.c
index 0ac750cc5ea1..b9110220c0e0 100644
--- a/drivers/video/fbdev/savage/savagefb_driver.c
+++ b/drivers/video/fbdev/savage/savagefb_driver.c
@@ -2170,6 +2170,7 @@ static int savagefb_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	struct fb_info *info;
 	struct savagefb_par *par;
 	u_int h_sync, v_sync;
+	unsigned char *edid;
 	int err, lpitch;
 	int video_len;
 
@@ -2212,9 +2213,9 @@ static int savagefb_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	INIT_LIST_HEAD(&info->modelist);
 #if defined(CONFIG_FB_SAVAGE_I2C)
 	savagefb_create_i2c_busses(info);
-	savagefb_probe_i2c_connector(info, &par->edid);
-	fb_edid_to_monspecs(par->edid, &info->monspecs);
-	kfree(par->edid);
+	savagefb_probe_i2c_connector(info, &edid);
+	fb_edid_to_monspecs(edid, &info->monspecs);
+	kfree(edid);
 	fb_videomode_to_modelist(info->monspecs.modedb,
 				 info->monspecs.modedb_len,
 				 &info->modelist);

             reply	other threads:[~2021-12-03  9:57 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-03  9:57 Dan Carpenter [this message]
2021-12-03  9:57 ` [PATCH] fbdev: savagefb: make a variable local Dan Carpenter
2021-12-07 10:51 ` kernel test robot
2021-12-07 10:51   ` kernel test robot
2021-12-07 10:51   ` kernel test robot

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