Author: Markus Elfring <elfring@users.sourceforge.net> The dma_pool_destroy() function tests whether its argument is NULL and then returns immediately. Thus the test around the calls is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Signed-off-by: Herbert Xu — drivers/crypto/ixp4xx_crypto.c | 6 ++—- 1 file changed, 2 insertions(+), 4 deletions(-) diff …