Staging: skein: Remove NULL comparison

Problem found using checkpatch.pl
CHECK: Comparison to NULL could be written "key"

Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/skein/skein_base.c b/drivers/staging/skein/skein_base.c
index bfb08fa..25a01ca 100644 (file)
--- a/drivers/staging/skein/skein_base.c
+++ b/drivers/staging/skein/skein_base.c
@@ -88,7 +88,7 @@ int skein_256_init_ext(struct skein_256_ctx *ctx, size_t hash_bit_len,
        } cfg; /* config block */
 
        skein_assert_ret(hash_bit_len > 0, SKEIN_BAD_HASHLEN);
-       skein_assert_ret(key_bytes == 0 || key != NULL, SKEIN_FAIL);
+       skein_assert_ret(key_bytes == 0 || key, SKEIN_FAIL);
 
        /* compute the initial chaining values ctx->x[], based on key */
        if (key_bytes == 0) { /* is there a key? */
@@ -316,7 +316,7 @@ int skein_512_init_ext(struct skein_512_ctx *ctx, size_t hash_bit_len,
        } cfg;                              /* config block */
 
        skein_assert_ret(hash_bit_len > 0, SKEIN_BAD_HASHLEN);
-       skein_assert_ret(key_bytes == 0 || key != NULL, SKEIN_FAIL);
+       skein_assert_ret(key_bytes == 0 || key, SKEIN_FAIL);
 
        /* compute the initial chaining values ctx->x[], based on key */
        if (key_bytes == 0) { /* is there a key? */
@@ -537,7 +537,7 @@ int skein_1024_init_ext(struct skein_1024_ctx *ctx, size_t hash_bit_len,
        } cfg;                              /* config block */
 
        skein_assert_ret(hash_bit_len > 0, SKEIN_BAD_HASHLEN);
-       skein_assert_ret(key_bytes == 0 || key != NULL, SKEIN_FAIL);
+       skein_assert_ret(key_bytes == 0 || key, SKEIN_FAIL);
 
        /* compute the initial chaining values ctx->x[], based on key */
        if (key_bytes == 0) { /* is there a key? */