[PATCH 2/3] staging: most: aim-cdev: report error returned by alloc_chrdev_region

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This patch forwards the error code returned by function
alloc_chrdev_region(). It is needed to stop the module
from hiding the actual cause of failure.

Signed-off-by: Christian Gromm <christian.gromm@xxxxxxxxxxxxx>
---
 drivers/staging/most/aim-cdev/cdev.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/most/aim-cdev/cdev.c b/drivers/staging/most/aim-cdev/cdev.c
index 6ca2440..db6f458 100644
--- a/drivers/staging/most/aim-cdev/cdev.c
+++ b/drivers/staging/most/aim-cdev/cdev.c
@@ -507,8 +507,9 @@ static int __init mod_init(void)
 	spin_lock_init(&ch_list_lock);
 	ida_init(&minor_id);
 
-	if (alloc_chrdev_region(&aim_devno, 0, 50, "cdev") < 0)
-		return -ENOMEM;
+	err = alloc_chrdev_region(&aim_devno, 0, 50, "cdev");
+	if (err < 0)
+		return err;
 	major = MAJOR(aim_devno);
 
 	aim_class = class_create(THIS_MODULE, "most_cdev_aim");
-- 
1.9.1

_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel



[Index of Archives]     [Linux Driver Backports]     [DMA Engine]     [Linux GPIO]     [Linux SPI]     [Video for Linux]     [Linux USB Devel]     [Linux Coverity]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux