ch12: update device node for miscdrv_rdwr_mutexlock

vincentkfu · vincentkfu · commit b035221bc2c4 · 2022-01-04T19:44:46.000-05:00
The device node name was hard coded in the kernel log message. Change
the code to refer to the name in the device struct.

Signed-off-by: Vincent Fu &lt;vincentfu@gmail.com&gt;
diff --git a/ch12/1_miscdrv_rdwr_mutexlock/miscdrv_rdwr_mutexlock.c b/ch12/1_miscdrv_rdwr_mutexlock/miscdrv_rdwr_mutexlock.c
@@ -278,7 +278,7 @@ static int __init miscdrv_init_mutexlock(void)
 		return ret;
 	}
 	pr_info("LLKD misc driver (major # 10) registered, minor# = %d,"
-		" dev node is /dev/llkd_miscdrv_rdwr\n", llkd_miscdev.minor);
+		" dev node is /dev/%s", llkd_miscdev.minor, llkd_miscdev.name);
 
 	/*
 	 * A 'managed' kzalloc(): use the 'devres' API devm_kzalloc() for mem

Original file line number	Diff line number	Diff line change
`@@ -278,7 +278,7 @@ static int __init miscdrv_init_mutexlock(void)`
`278`	`278`	`return ret;`
`279`	`279`	`}`
`280`	`280`	`pr_info("LLKD misc driver (major # 10) registered, minor# = %d,"`
`281`		`- " dev node is /dev/llkd_miscdrv_rdwr\n", llkd_miscdev.minor);`
	`281`	`+ " dev node is /dev/%s", llkd_miscdev.minor, llkd_miscdev.name);`
`282`	`282`
`283`	`283`	`/*`
`284`	`284`	`* A 'managed' kzalloc(): use the 'devres' API devm_kzalloc() for mem`