7 files changed, 10 insertions, 0 deletions

diff --git a/drivers/char/cs5535_gpio.c b/drivers/char/cs5535_gpio.c
index c0a4a0bb509e..628e3d3249d2 100644
--- a/drivers/char/cs5535_gpio.c
+++ b/drivers/char/cs5535_gpio.c
@@ -153,6 +153,8 @@ static ssize_t cs5535_gpio_read(struct file *file, char __user *buf,
         return count;
 }
 
+/* No BKL needed here - "mask" is the only global resource used
+   here and it's a boot-time parameter */
 static int cs5535_gpio_open(struct inode *inode, struct file *file)
 {
         u32 m = iminor(inode);
diff --git a/drivers/char/dtlk.c b/drivers/char/dtlk.c
index abde6ddefe69..433388c60235 100644
--- a/drivers/char/dtlk.c
+++ b/drivers/char/dtlk.c
@@ -288,6 +288,8 @@ static int dtlk_ioctl(struct inode *inode,
         }
 }
 
+/* No BKL needed here; "dtlk_busy" is the only global resource,
+   and it is not ever set by anybody (test is broken) */
 static int dtlk_open(struct inode *inode, struct file *file)
 {
         TRACE_TEXT("(dtlk_open");
diff --git a/drivers/char/pc8736x_gpio.c b/drivers/char/pc8736x_gpio.c
index ecfaf180e5bd..8715dc9f4a53 100644
--- a/drivers/char/pc8736x_gpio.c
+++ b/drivers/char/pc8736x_gpio.c
@@ -212,6 +212,7 @@ static struct nsc_gpio_ops pc8736x_gpio_ops = {
         .gpio_current   = pc8736x_gpio_current
 };
 
+/* No BKL needed here; no global resources accessed */
 static int pc8736x_gpio_open(struct inode *inode, struct file *file)
 {
         unsigned m = iminor(inode);
diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c
index 3aab837d9480..ce1987574888 100644
--- a/drivers/char/ppdev.c
+++ b/drivers/char/ppdev.c
@@ -633,6 +633,7 @@ static int pp_ioctl(struct inode *inode, struct file *file,
         return 0;
 }
 
+/* No BKL needed here: only local resources used */
 static int pp_open (struct inode * inode, struct file * file)
 {
         unsigned int minor = iminor(inode);
diff --git a/drivers/char/scx200_gpio.c b/drivers/char/scx200_gpio.c
index 99e5272e3c53..be2c623a9862 100644
--- a/drivers/char/scx200_gpio.c
+++ b/drivers/char/scx200_gpio.c
@@ -46,6 +46,7 @@ struct nsc_gpio_ops scx200_gpio_ops = {
 };
 EXPORT_SYMBOL_GPL(scx200_gpio_ops);
 
+/* No BKL needed here: no global resources used */
 static int scx200_gpio_open(struct inode *inode, struct file *file)
 {
         unsigned m = iminor(inode);
diff --git a/drivers/char/tb0219.c b/drivers/char/tb0219.c
index 4c431cb7cf1b..db8c2ca2ce4c 100644
--- a/drivers/char/tb0219.c
+++ b/drivers/char/tb0219.c
@@ -232,6 +232,7 @@ static ssize_t tanbac_tb0219_write(struct file *file, const char __user *data,
         return i;
 }
 
+/* No BKL needed here; no global resources accessed */
 static int tanbac_tb0219_open(struct inode *inode, struct file *file)
 {
         unsigned int minor;
diff --git a/drivers/char/vr41xx_giu.c b/drivers/char/vr41xx_giu.c
index e5ed09192be8..412937fdb958 100644
--- a/drivers/char/vr41xx_giu.c
+++ b/drivers/char/vr41xx_giu.c
@@ -543,6 +543,8 @@ static ssize_t gpio_write(struct file *file, const char __user *data,
         return i;
 }
 
+/* No BKL needed here; only global (giu_nr_pins) is only set
+   at probe time */
 static int gpio_open(struct inode *inode, struct file *file)
 {
         unsigned int pin;