[PATCH] fmc: add error handling for kmemdup

[Zhouyang Jia]

When kmemdup fails, the lack of error-handling code may
cause unexpected results.

This patch adds error-handling code after calling kmemdup.

Signed-off-by: Zhouyang Jia <jiazhouyan...@gmail.com>
---
 drivers/fmc/fmc-fakedev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/fmc/fmc-fakedev.c b/drivers/fmc/fmc-fakedev.c
index 941d093..62d9046 100644
--- a/drivers/fmc/fmc-fakedev.c
+++ b/drivers/fmc/fmc-fakedev.c
@@ -282,6 +282,9 @@ static struct ff_dev *ff_dev_create(void)
        for (i = 0; i < ff_nr_dev; i++) {
                fmc = kmemdup(&ff_template_fmc, sizeof(ff_template_fmc),
                              GFP_KERNEL);
+               if (!fmc)
+                       return ERR_PTR(-ENOMEM);
+
                fmc->hwdev = &ff->dev;
                fmc->carrier_data = ff;
                fmc->nr_slots = ff_nr_dev;
-- 
2.7.4