Merge tag 'fbdev-v4.17' of git://github.com/bzolnier/linux

Pull fbdev updates from Bartlomiej Zolnierkiewicz:
 "There is nothing really major here, just a couple of small bugfixes,
  improvements and cleanups:

   - make it possible to load radeonfb driver when offb driver is loaded
     first (Mathieu Malaterre)

   - fix memory leak in offb driver (Mathieu Malaterre)

   - fix unaligned access in udlfb driver (Ladislav Michl)

   - convert atmel_lcdfb driver to use GPIO descriptors (Ludovic
     Desroches)

   - avoid mismatched prototypes in sisfb driver (Arnd Bergmann)

   - remove VLA usage from viafb driver (Gustavo A. R. Silva)

   - add missing help text to FB_I810_I2 config option (Ulf Magnusson)

   - misc fixes (Gustavo A. R. Silva, Colin Ian King, Markus Elfring)

   - remove dead code from s3c-fb driver for Exynos and S5PV210
     platforms

   - misc cleanups (Corentin Labbe, Ladislav Michl, Ulf Magnusson,
     Vladimir Zapolskiy, Markus Elfring)"

* tag 'fbdev-v4.17' of git://github.com/bzolnier/linux: (32 commits)
  video: fbdev: s3c-fb: remove dead platform code for Exynos and S5PV210 platforms
  video: au1100fb: Delete an unnecessary variable initialisation in au1100fb_drv_probe()
  video: au1100fb: Improve a size determination in au1100fb_drv_probe()
  video: au1100fb: Delete an error message for a failed memory allocation in au1100fb_drv_probe()
  video/console/sticore: Delete an error message for a failed memory allocation in sti_try_rom_generic()
  video: ARM CLCD: Improve a size determination in clcdfb_probe()
  video: ARM CLCD: Delete an error message for a failed memory allocation in clcdfb_probe()
  video: matroxfb: Delete an error message for a failed memory allocation in matroxfb_crtc2_probe()
  video: s3c-fb: Improve a size determination in s3c_fb_probe()
  video: s3c-fb: Delete an error message for a failed memory allocation in s3c_fb_probe()
  video: fsl-diu-fb: Delete an error message for a failed memory allocation in fsl_diu_init()
  video: ssd1307fb: Improve a size determination in ssd1307fb_probe()
  video: smscufx: Delete an error message for a failed memory allocation in ufx_realloc_framebuffer()
  video: smscufx: Return an error code only as a constant in ufx_realloc_framebuffer()
  video: smscufx: Less checks in ufx_usb_probe() after error detection
  video: udlfb: Return an error code only as a constant in dlfb_realloc_framebuffer()
  video/fbdev/stifb: Delete an error message for a failed memory allocation in stifb_init_fb()
  video/fbdev/stifb: Return -ENOMEM after a failed kzalloc() in stifb_init_fb()
  video: fbdev: aty128fb: use true and false for boolean values
  fbdev: aty: fix missing indentation in if statement
  ...

1 files changed, 22 insertions, 37 deletions

diff --git a/drivers/video/fbdev/smscufx.c b/drivers/video/fbdev/smscufx.c
index 8db7085e5d1a..22b606af0a87 100644
--- a/drivers/video/fbdev/smscufx.c
+++ b/drivers/video/fbdev/smscufx.c
@@ -1293,7 +1293,6 @@ static struct fb_ops ufx_ops = {
  * Assumes no active clients have framebuffer open */
 static int ufx_realloc_framebuffer(struct ufx_data *dev, struct fb_info *info)
 {
-	int retval = -ENOMEM;
 	int old_len = info->fix.smem_len;
 	int new_len;
 	unsigned char *old_fb = info->screen_base;
@@ -1308,10 +1307,8 @@ static int ufx_realloc_framebuffer(struct ufx_data *dev, struct fb_info *info)
 		 * Alloc system memory for virtual framebuffer
 		 */
 		new_fb = vmalloc(new_len);
-		if (!new_fb) {
-			pr_err("Virtual framebuffer alloc failed");
-			goto error;
-		}
+		if (!new_fb)
+			return -ENOMEM;
 
 		if (info->screen_base) {
 			memcpy(new_fb, old_fb, old_len);
@@ -1323,11 +1320,7 @@ static int ufx_realloc_framebuffer(struct ufx_data *dev, struct fb_info *info)
 		info->fix.smem_start = (unsigned long) new_fb;
 		info->flags = smscufx_info_flags;
 	}
-
-	retval = 0;
-
-error:
-	return retval;
+	return 0;
 }
 
 /* sets up I2C Controller for 100 Kbps, std. speed, 7-bit addr, master,
@@ -1620,8 +1613,8 @@ static int ufx_usb_probe(struct usb_interface *interface,
 {
 	struct usb_device *usbdev;
 	struct ufx_data *dev;
-	struct fb_info *info = NULL;
-	int retval = -ENOMEM;
+	struct fb_info *info;
+	int retval;
 	u32 id_rev, fpga_rev;
 
 	/* usb initialization */
@@ -1631,7 +1624,7 @@ static int ufx_usb_probe(struct usb_interface *interface,
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	if (dev == NULL) {
 		dev_err(&usbdev->dev, "ufx_usb_probe: failed alloc of dev struct\n");
-		goto error;
+		return -ENOMEM;
 	}
 
 	/* we need to wait for both usb and fbdev to spin down on disconnect */
@@ -1652,9 +1645,8 @@ static int ufx_usb_probe(struct usb_interface *interface,
 	dev_dbg(dev->gdev, "fb_defio enable=%d\n", fb_defio);
 
 	if (!ufx_alloc_urb_list(dev, WRITES_IN_FLIGHT, MAX_TRANSFER)) {
-		retval = -ENOMEM;
 		dev_err(dev->gdev, "ufx_alloc_urb_list failed\n");
-		goto error;
+		goto e_nomem;
 	}
 
 	/* We don't register a new USB class. Our client interface is fbdev */
@@ -1662,9 +1654,8 @@ static int ufx_usb_probe(struct usb_interface *interface,
 	/* allocates framebuffer driver structure, not framebuffer memory */
 	info = framebuffer_alloc(0, &usbdev->dev);
 	if (!info) {
-		retval = -ENOMEM;
 		dev_err(dev->gdev, "framebuffer_alloc failed\n");
-		goto error;
+		goto e_nomem;
 	}
 
 	dev->info = info;
@@ -1675,7 +1666,7 @@ static int ufx_usb_probe(struct usb_interface *interface,
 	retval = fb_alloc_cmap(&info->cmap, 256, 0);
 	if (retval < 0) {
 		dev_err(dev->gdev, "fb_alloc_cmap failed %x\n", retval);
-		goto error;
+		goto destroy_modedb;
 	}
 
 	INIT_DELAYED_WORK(&dev->free_framebuffer_work,
@@ -1736,26 +1727,20 @@ static int ufx_usb_probe(struct usb_interface *interface,
 	return 0;
 
 error:
-	if (dev) {
-		if (info) {
-			if (info->cmap.len != 0)
-				fb_dealloc_cmap(&info->cmap);
-			if (info->monspecs.modedb)
-				fb_destroy_modedb(info->monspecs.modedb);
-			vfree(info->screen_base);
-
-			fb_destroy_modelist(&info->modelist);
-
-			framebuffer_release(info);
-		}
-
-		kref_put(&dev->kref, ufx_free); /* ref for framebuffer */
-		kref_put(&dev->kref, ufx_free); /* last ref from kref_init */
-
-		/* dev has been deallocated. Do not dereference */
-	}
-
+	fb_dealloc_cmap(&info->cmap);
+destroy_modedb:
+	fb_destroy_modedb(info->monspecs.modedb);
+	vfree(info->screen_base);
+	fb_destroy_modelist(&info->modelist);
+	framebuffer_release(info);
+put_ref:
+	kref_put(&dev->kref, ufx_free); /* ref for framebuffer */
+	kref_put(&dev->kref, ufx_free); /* last ref from kref_init */
 	return retval;
+
+e_nomem:
+	retval = -ENOMEM;
+	goto put_ref;
 }
 
 static void ufx_usb_disconnect(struct usb_interface *interface)