From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Date: Mon, 13 Jul 2015 12:02:28 +0000 (+0530)
Subject: char: misc: fix error path
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1037b2787b6df12f31b7051f7cdbb289f7972ee7;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

char: misc: fix error path

Lets call remove_proc_entry() in the error path only if we have
successfully created "misc" in procfs.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index 3b95795cb640..c83ef9652bc9 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -281,8 +281,9 @@ static char *misc_devnode(struct device *dev, umode_t *mode)
 static int __init misc_init(void)
 {
 	int err;
+	struct proc_dir_entry *ret;
 
-	proc_create("misc", 0, NULL, &misc_proc_fops);
+	ret = proc_create("misc", 0, NULL, &misc_proc_fops);
 	misc_class = class_create(THIS_MODULE, "misc");
 	err = PTR_ERR(misc_class);
 	if (IS_ERR(misc_class))
@@ -298,7 +299,8 @@ fail_printk:
 	printk("unable to get major %d for misc devices\n", MISC_MAJOR);
 	class_destroy(misc_class);
 fail_remove:
-	remove_proc_entry("misc", NULL);
+	if (ret)
+		remove_proc_entry("misc", NULL);
 	return err;
 }
 subsys_initcall(misc_init);