Patch "crypto: hisilicon/hpre - Fix a erroneous check after snprintf()" has been added to the 6.6-stable tree

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This is a note to let you know that I've just added the patch titled

    crypto: hisilicon/hpre - Fix a erroneous check after snprintf()

to the 6.6-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     crypto-hisilicon-hpre-fix-a-erroneous-check-after-sn.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 47d535cb8ee6a3a99620bfd9ee5d870ea92616d8
Author: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Date:   Mon Sep 4 22:17:29 2023 +0200

    crypto: hisilicon/hpre - Fix a erroneous check after snprintf()
    
    [ Upstream commit c977950146720abff14e46d8c53f5638b06a9182 ]
    
    This error handling looks really strange.
    Check if the string has been truncated instead.
    
    Fixes: 02ab994635eb ("crypto: hisilicon - Fixed some tiny bugs of HPRE")
    Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
    Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/crypto/hisilicon/hpre/hpre_main.c b/drivers/crypto/hisilicon/hpre/hpre_main.c
index 39297ce70f441..db44d889438a6 100644
--- a/drivers/crypto/hisilicon/hpre/hpre_main.c
+++ b/drivers/crypto/hisilicon/hpre/hpre_main.c
@@ -1033,7 +1033,7 @@ static int hpre_cluster_debugfs_init(struct hisi_qm *qm)
 
 	for (i = 0; i < clusters_num; i++) {
 		ret = snprintf(buf, HPRE_DBGFS_VAL_MAX_LEN, "cluster%d", i);
-		if (ret < 0)
+		if (ret >= HPRE_DBGFS_VAL_MAX_LEN)
 			return -EINVAL;
 		tmp_d = debugfs_create_dir(buf, qm->debug.debug_root);
 



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