From 4a87772480aa468d93b5b89bd00ca741e94d3707 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Sat, 30 May 2020 15:35:37 +0200 Subject: [PATCH] crypto: cavium/nitrox - Fix 'nitrox_get_first_device()' when ndevlist is fully iterated commit 320bdbd816156f9ca07e5fed7bfb449f2908dda7 upstream. When a list is completely iterated with 'list_for_each_entry(x, ...)', x is not NULL at the end. While at it, remove a useless initialization of the ndev variable. It is overridden by 'list_for_each_entry'. Fixes: f2663872f073 ("crypto: cavium - Register the CNN55XX supported crypto algorithms.") Cc: Signed-off-by: Christophe JAILLET Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- drivers/crypto/cavium/nitrox/nitrox_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/cavium/nitrox/nitrox_main.c b/drivers/crypto/cavium/nitrox/nitrox_main.c index c4632d8..637be2f 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_main.c +++ b/drivers/crypto/cavium/nitrox/nitrox_main.c @@ -278,7 +278,7 @@ static void nitrox_remove_from_devlist(struct nitrox_device *ndev) struct nitrox_device *nitrox_get_first_device(void) { - struct nitrox_device *ndev = NULL; + struct nitrox_device *ndev; mutex_lock(&devlist_lock); list_for_each_entry(ndev, &ndevlist, list) { @@ -286,7 +286,7 @@ struct nitrox_device *nitrox_get_first_device(void) break; } mutex_unlock(&devlist_lock); - if (!ndev) + if (&ndev->list == &ndevlist) return NULL; refcount_inc(&ndev->refcnt); -- 2.7.4