X-Git-Url: https://git.stricted.de/?a=blobdiff_plain;f=lib%2Flibcrc32c.c;h=9f79547d1b9782237a563f6a2e838655f6adf6dc;hb=53a7ff8fb785839b87f950fd85433d9c662fac89;hp=74a54b7f25626e8c6d224af2b7384f7dcbf2e72f;hpb=d66435cc7da95964cb386674bd82ec12ca66320a;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

diff --git a/lib/libcrc32c.c b/lib/libcrc32c.c
index 74a54b7f2562..9f79547d1b97 100644
--- a/lib/libcrc32c.c
+++ b/lib/libcrc32c.c
@@ -43,7 +43,7 @@ static struct crypto_shash *tfm;
 u32 crc32c(u32 crc, const void *address, unsigned int length)
 {
 	SHASH_DESC_ON_STACK(shash, tfm);
-	u32 *ctx = (u32 *)shash_desc_ctx(shash);
+	u32 ret, *ctx = (u32 *)shash_desc_ctx(shash);
 	int err;
 
 	shash->tfm = tfm;
@@ -53,7 +53,9 @@ u32 crc32c(u32 crc, const void *address, unsigned int length)
 	err = crypto_shash_update(shash, address, length);
 	BUG_ON(err);
 
-	return *ctx;
+	ret = *ctx;
+	barrier_data(ctx);
+	return ret;
 }
 
 EXPORT_SYMBOL(crc32c);