spi: potential memleak in spidev_ioctl

'ioc' should be deallocated if __copy_from_user fails (found by Coverity
- CID 1644).

Signed-off-by: Florin Malita <fmalita@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index bcfef04f547e..d04242aee40d 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -364,6 +364,7 @@ spidev_ioctl(struct inode *inode, struct file *filp,
                         break;
                 }
                 if (__copy_from_user(ioc, (void __user *)arg, tmp)) {
+                        kfree(ioc);
                         retval = -EFAULT;
                         break;
                 }