USB: Fix a memory leak in em28xx_usb_probe()
authorJesper Juhl <jesper.juhl@gmail.com>
Thu, 9 Aug 2007 21:02:36 +0000 (23:02 +0200)
committerGreg Kroah-Hartman <gregkh@suse.de>
Wed, 22 Aug 2007 21:27:47 +0000 (14:27 -0700)
If, in em28xx_usb_probe() the memory allocation
dev->alt_max_pkt_size = kmalloc(32*
dev->num_alt,GFP_KERNEL);
fails, then we'll bail out and return -ENOMEM.
The problem is that in that case we don't free the storage allocated
to 'dev', thus causing a memory leak.

This patch fixes the leak by freeing 'dev' before we return -ENOMEM.
This fixes Coverity bug #647.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/media/video/em28xx/em28xx-video.c

index 2c7b158ce7e1bdbf9af1826701a9780ba6a3aa58..40307f3f6fe31118be769ecf2103873c86ead2ec 100644 (file)
@@ -1772,6 +1772,7 @@ static int em28xx_usb_probe(struct usb_interface *interface,
        if (dev->alt_max_pkt_size == NULL) {
                em28xx_errdev("out of memory!\n");
                em28xx_devused&=~(1<<nr);
+               kfree(dev);
                return -ENOMEM;
        }