[dm][graphic] fixup the simple framebuffer regulator check

GuEe-GUI · Rbb666 · commit 196488fd7f72 · 2026-06-30T15:53:44.000+08:00
Signed-off-by: GuEe-GUI &lt;2991707448@qq.com&gt;
diff --git a/components/drivers/graphic/framebuffer/fb-simple.c b/components/drivers/graphic/framebuffer/fb-simple.c
@@ -111,6 +111,11 @@ static rt_err_t simplefb_regulator_probe(struct simplefb *sfb,
         }
     }
 
+    if (!sfb->supplys_nr)
+    {
+        return RT_EOK;
+    }
+
     sfb->supplys = rt_calloc(sfb->supplys_nr, sizeof(sfb->supplys[0]));
 
     if (!sfb->supplys)

Original file line number	Diff line number	Diff line change
`@@ -111,6 +111,11 @@ static rt_err_t simplefb_regulator_probe(struct simplefb *sfb,`
`111`	`111`	`}`
`112`	`112`	`}`
`113`	`113`
	`114`	`+ if (!sfb->supplys_nr)`
	`115`	`+ {`
	`116`	`+ return RT_EOK;`
	`117`	`+ }`
	`118`	`+`
`114`	`119`	`sfb->supplys = rt_calloc(sfb->supplys_nr, sizeof(sfb->supplys[0]));`
`115`	`120`
`116`	`121`	`if (!sfb->supplys)`