From: Emilio G. Cota Date: Fri, 3 Dec 2010 09:05:08 +0000 (+0000) Subject: staging/vme_user: fix usage of the slave resources after they've been freed X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=1daa38d379932bde0d2036c2e10ced3e8842b74f;p=linux-beck.git staging/vme_user: fix usage of the slave resources after they've been freed buf_unalloc() frees the memory buffers allocated with vme_alloc_consistent. The associated VME resource is needed in both vme_alloc_consistent and vme_free_consistent; however the slave VME resources are being freed before the calls to vme_free_consistent are made, which means the buffers are never returned. Fix this by freeing the VME resources only after the consistent buffers have been returned. Signed-off-by: Emilio G. Cota Acked-by: Martyn Welch Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/vme/devices/vme_user.c b/drivers/staging/vme/devices/vme_user.c index 36381489b797..dc7175bdfcf9 100644 --- a/drivers/staging/vme/devices/vme_user.c +++ b/drivers/staging/vme/devices/vme_user.c @@ -829,8 +829,8 @@ err_master: err_slave: while (i > SLAVE_MINOR) { i--; - vme_slave_free(image[i].resource); buf_unalloc(i); + vme_slave_free(image[i].resource); } err_class: cdev_del(vme_user_cdev); @@ -855,8 +855,8 @@ static int __exit vme_user_remove(struct device *dev, int cur_bus, int cur_slot) for (i = SLAVE_MINOR; i < (SLAVE_MAX + 1); i++) { vme_slave_set(image[i].resource, 0, 0, 0, 0, VME_A32, 0); - vme_slave_free(image[i].resource); buf_unalloc(i); + vme_slave_free(image[i].resource); } /* Unregister device driver */