[PATCH] drivers:pcmcia:m32r_pcc:Check return value of request_region()

[nobble]

request_region() can fail here and check its return value

Signed-off-by: nobbleRen <nobble...@gmail.com>
---
 drivers/pcmcia/m32r_pcc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pcmcia/m32r_pcc.c b/drivers/pcmcia/m32r_pcc.c
index e50bbf8..5ab241a 100644
--- a/drivers/pcmcia/m32r_pcc.c
+++ b/drivers/pcmcia/m32r_pcc.c
@@ -316,7 +316,8 @@ static int add_pcc_socket(ulong base, int irq, ulong 
mapaddr,
 
        /* add pcc */
        if (t->base > 0) {
-               request_region(t->base, 0x20, "m32r-pcc");
+               if (!request_region(t->base, 0x20, "m32r-pcc"))
+                       return -EBUSY;
        }
 
        printk(KERN_INFO "  %s ", pcc[pcc_sockets].name);
-- 
1.9.1