From: Dominik Brodowski <linux@dominikbrodowski.net>
Date: Mon, 27 Jun 2005 23:29:00 +0000 (-0700)
Subject: [PATCH] pcmcia: properly handle all errors of register_chrdev
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1a8ceafce5f1e68c28c7ba52fd7e72ab0008eb46;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[PATCH] pcmcia: properly handle all errors of register_chrdev

register_chrdev() can return errors (negative) other then -EBUSY, so check
for any negative error code.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/pcmcia/pcmcia_ioctl.c b/drivers/pcmcia/pcmcia_ioctl.c
index 3084d8a3ba41..b883bc151ed0 100644
--- a/drivers/pcmcia/pcmcia_ioctl.c
+++ b/drivers/pcmcia/pcmcia_ioctl.c
@@ -760,9 +760,9 @@ void __init pcmcia_setup_ioctl(void) {
 
 	/* Set up character device for user mode clients */
 	i = register_chrdev(0, "pcmcia", &ds_fops);
-	if (i == -EBUSY)
+	if (i < 0)
 		printk(KERN_NOTICE "unable to find a free device # for "
-		       "Driver Services\n");
+		       "Driver Services (error=%d)\n", i);
 	else
 		major_dev = i;