linux-kernel - [PATCH v3 2/3] fbdev: kyro: Use devm

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250709095354.931589-3-giovanni.disanti.lkl@gmail.com>
Date: Wed,  9 Jul 2025 11:53:53 +0200
From: Giovanni Di Santi <giovanni.disanti.lkl@...il.com>
To: tzimmermann@...e.de,
	deller@....de
Cc: linux-fbdev@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	Giovanni Di Santi <giovanni.disanti.lkl@...il.com>
Subject: [PATCH v3 2/3] fbdev: kyro: Use devm_ioremap() for mmio registers

Replace the manual ioremap() call for the MMIO registers with the
device-managed devm_ioremap() variant.

This simplifies the driver's resource management by ensuring the memory is
automatically unmapped when the driver detaches from the device.

Signed-off-by: Giovanni Di Santi <giovanni.disanti.lkl@...il.com>
---
 drivers/video/fbdev/kyro/fbdev.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/video/fbdev/kyro/fbdev.c b/drivers/video/fbdev/kyro/fbdev.c
index 86e5d60ed0ff..ddc241f508b1 100644
--- a/drivers/video/fbdev/kyro/fbdev.c
+++ b/drivers/video/fbdev/kyro/fbdev.c
@@ -701,13 +701,14 @@ static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	kyro_fix.mmio_len   = pci_resource_len(pdev, 1);
 
 	currentpar->regbase = deviceInfo.pSTGReg =
-		ioremap(kyro_fix.mmio_start, kyro_fix.mmio_len);
+		devm_ioremap(&pdev->dev, kyro_fix.mmio_start,
+			     kyro_fix.mmio_len);
 	if (!currentpar->regbase)
 		goto out_free_fb;
 
 	info->screen_base = pci_ioremap_wc_bar(pdev, 0);
 	if (!info->screen_base)
-		goto out_unmap_regs;
+		goto out_free_fb;
 
 	if (!nomtrr)
 		currentpar->wc_cookie = arch_phys_wc_add(kyro_fix.smem_start,
@@ -755,8 +756,6 @@ static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 out_unmap:
 	iounmap(info->screen_base);
-out_unmap_regs:
-	iounmap(currentpar->regbase);
 out_free_fb:
 	framebuffer_release(info);
 
@@ -779,7 +778,6 @@ static void kyrofb_remove(struct pci_dev *pdev)
 	deviceInfo.ulOverlayOffset = 0;
 
 	iounmap(info->screen_base);
-	iounmap(par->regbase);
 
 	arch_phys_wc_del(par->wc_cookie);
 
-- 
2.43.0