From 785185f4a3cf024c778312ec4a1f34126319d890 Mon Sep 17 00:00:00 2001 From: kbuild test robot Date: Sun, 23 Apr 2017 12:26:23 +0300 Subject: [PATCH] staging: ccree: fix ifnullfree.cocci warnings drivers/staging/ccree/ssi_hash.c:317:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values. drivers/staging/ccree/ssi_hash.c:320:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values. drivers/staging/ccree/ssi_hash.c:323:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values. drivers/staging/ccree/ssi_hash.c:373:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values. drivers/staging/ccree/ssi_hash.c:375:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values. drivers/staging/ccree/ssi_hash.c:377:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values. drivers/staging/ccree/ssi_hash.c:379:3-8: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values. drivers/staging/ccree/ssi_hash.c:381:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values. drivers/staging/ccree/ssi_hash.c:383:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values. NULL check before some freeing functions is not needed. Based on checkpatch warning "kfree(NULL) is safe this check is probably not required" and kfreeaddr.cocci by Julia Lawall. Generated by: scripts/coccinelle/free/ifnullfree.cocci Signed-off-by: Gilad Ben-Yossef Signed-off-by: Fengguang Wu Signed-off-by: Greg Kroah-Hartman --- drivers/staging/ccree/ssi_hash.c | 27 +++++++++------------------ 1 file changed, 9 insertions(+), 18 deletions(-) diff --git a/drivers/staging/ccree/ssi_hash.c b/drivers/staging/ccree/ssi_hash.c index ab191de39fb2..8ff5d4ec9e5c 100644 --- a/drivers/staging/ccree/ssi_hash.c +++ b/drivers/staging/ccree/ssi_hash.c @@ -314,14 +314,11 @@ fail4: state->digest_buff_dma_addr = 0; } fail3: - if (state->opad_digest_buff != NULL) - kfree(state->opad_digest_buff); + kfree(state->opad_digest_buff); fail2: - if (state->digest_bytes_len != NULL) - kfree(state->digest_bytes_len); + kfree(state->digest_bytes_len); fail1: - if (state->digest_buff != NULL) - kfree(state->digest_buff); + kfree(state->digest_buff); fail_digest_result_buff: if (state->digest_result_buff != NULL) { kfree(state->digest_result_buff); @@ -370,18 +367,12 @@ static void ssi_hash_unmap_request(struct device *dev, state->opad_digest_dma_addr = 0; } - if (state->opad_digest_buff != NULL) - kfree(state->opad_digest_buff); - if (state->digest_bytes_len != NULL) - kfree(state->digest_bytes_len); - if (state->digest_buff != NULL) - kfree(state->digest_buff); - if (state->digest_result_buff != NULL) - kfree(state->digest_result_buff); - if (state->buff1 != NULL) - kfree(state->buff1); - if (state->buff0 != NULL) - kfree(state->buff0); + kfree(state->opad_digest_buff); + kfree(state->digest_bytes_len); + kfree(state->digest_buff); + kfree(state->digest_result_buff); + kfree(state->buff1); + kfree(state->buff0); } static void ssi_hash_unmap_result(struct device *dev,