Signed-off-by: Rahul Bedarkar <rahulbedarka...@gmail.com>
---
drivers/char/misc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index cb32ea9..3111e86 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -186,6 +186,7 @@ int misc_register(struct miscdevice *misc)
if (misc->minor == MISC_DYNAMIC_MINOR) {
int i = find_first_zero_bit(misc_minors, DYNAMIC_MINORS);
+
if (i >= DYNAMIC_MINORS) {
err = -EBUSY;
goto out;
@@ -209,6 +210,7 @@ int misc_register(struct miscdevice *misc)
misc, "%s", misc->name);
if (IS_ERR(misc->this_device)) {
int i = DYNAMIC_MINORS - misc->minor - 1;
+
if (i < DYNAMIC_MINORS && i >= 0)
clear_bit(i, misc_minors);
err = PTR_ERR(misc->this_device);
--
1.8.3.2
--
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