V4L/DVB (7092): radio-sf16fmr2: fix request_region() validation [bugzilla 9699]

This patch changed the request_region() validation to avoid invalid return.
Thanks to Roland Kletzing <devzero@web.de> for bug report and data collection.

Signed-off-by: Douglas Schilling Landgraf <dougsland@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

diff --git a/drivers/media/radio/radio-sf16fmr2.c b/drivers/media/radio/radio-sf16fmr2.c
index f7c8b000404fffbe587b0d9ca2e96ed0c4aeadc8..ebc5fbbc38bb3534b408cccd0785e2a5e2ea80fd 100644 (file)
--- a/drivers/media/radio/radio-sf16fmr2.c
+++ b/drivers/media/radio/radio-sf16fmr2.c
@@ -470,9 +470,8 @@ static int __init fmr2_init(void)
 
        mutex_init(&lock);
 
-       if (request_region(io, 2, "sf16fmr2"))
-       {
-               printk(KERN_ERR "fmr2: port 0x%x already in use\n", io);
+       if (!request_region(io, 2, "sf16fmr2")) {
+               printk(KERN_ERR "radio-sf16fmr2: request_region failed!\n");
                return -EBUSY;
        }