[PATCH v3] fbdev: platinumfb: add error checking for ioremap calls

[Yue Bing Kun <yuebingkun@kylinos.cn>]

From: BingKun Yue <yuebingkun@kylinos.cn>

The ioremap() and ioremap_wt() calls in platinumfb_probe() were not
checked for failure. If any of these mappings fail, the driver would
dereference NULL pointers, leading to a kernel panic.

Add proper error checking and use goto-based cleanup to avoid code
duplication across the error paths.

Reported-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/linux-fbdev/20260819235918.GA2021182@ax162/
Signed-off-by: BingKun Yue <yuebingkun@kylinos.cn>
---
 drivers/video/fbdev/platinumfb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/platinumfb.c b/drivers/video/fbdev/platinumfb.c
index fdffadcc3e73..f74c937c839f 100644
--- a/drivers/video/fbdev/platinumfb.c
+++ b/drivers/video/fbdev/platinumfb.c
@@ -320,7 +320,7 @@ static void platinum_init_info(struct fb_info *info,
 	fb_alloc_cmap(&info->cmap, 256, 0);
 
 	/* Fill fix common fields */
-	strscpy(info->fix.id, "platinum", sizeof(info->fix.id));
+	strcpy(info->fix.id, "platinum");
 	info->fix.mmio_start = pinfo->platinum_regs_phys;
 	info->fix.mmio_len = 0x1000;
 	info->fix.type = FB_TYPE_PACKED_PIXELS;
-- 
2.43.0