[PATCH -next] scsi: ufs: Use kmemdup in ufshcd_read_string_desc()

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Use kmemdup rather than duplicating its implementation

Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
 drivers/scsi/ufs/ufshcd.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index acf298da054c..6d5e2f5d8468 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -3309,12 +3309,11 @@ int ufshcd_read_string_desc(struct ufs_hba *hba, u8 desc_index,
 		str[ret++] = '\0';
 
 	} else {
-		str = kzalloc(uc_str->len, GFP_KERNEL);
+		str = kmemdup(uc_str, uc_str->len, GFP_KERNEL);
 		if (!str) {
 			ret = -ENOMEM;
 			goto out;
 		}
-		memcpy(str, uc_str, uc_str->len);
 		ret = uc_str->len;
 	}
 out:






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