diff mbox series

[02/12] lpfc: Replace outdated strncpy with strscpy

Message ID 20230109233317.54737-3-justintee8345@gmail.com
State New
Headers show
Series lpfc: Update lpfc to revision 14.2.0.10 | expand

Commit Message

Justin Tee Jan. 9, 2023, 11:33 p.m. UTC 
The kernel test robot pointed out non-NULL terminated string possibilities
when using strncpy in lpfc_xcvr_data_show routine.  Although we manually
set the NULL character after strncpy, strncpy usage is outdated.

Replace all strncpy usages with the preferred strscpy API.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
---
 drivers/scsi/lpfc/lpfc_attr.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 9df90c0ab44d..c95401225057 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -1905,8 +1905,7 @@  lpfc_xcvr_data_show(struct device *dev, struct device_attribute *attr,
 		goto out_free_rdp;
 	}
 
-	strncpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_NAME], 16);
-	chbuf[16] = 0;
+	strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_NAME], 16);
 
 	len = scnprintf(buf, PAGE_SIZE - len, "VendorName:\t%s\n", chbuf);
 	len += scnprintf(buf + len, PAGE_SIZE - len,
@@ -1914,17 +1913,13 @@  lpfc_xcvr_data_show(struct device *dev, struct device_attribute *attr,
 			 (uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI],
 			 (uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI + 1],
 			 (uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI + 2]);
-	strncpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_PN], 16);
-	chbuf[16] = 0;
+	strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_PN], 16);
 	len += scnprintf(buf + len, PAGE_SIZE - len, "VendorPN:\t%s\n", chbuf);
-	strncpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_SN], 16);
-	chbuf[16] = 0;
+	strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_SN], 16);
 	len += scnprintf(buf + len, PAGE_SIZE - len, "VendorSN:\t%s\n", chbuf);
-	strncpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_REV], 4);
-	chbuf[4] = 0;
+	strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_REV], 4);
 	len += scnprintf(buf + len, PAGE_SIZE - len, "VendorRev:\t%s\n", chbuf);
-	strncpy(chbuf, &rdp_context->page_a0[SSF_DATE_CODE], 8);
-	chbuf[8] = 0;
+	strscpy(chbuf, &rdp_context->page_a0[SSF_DATE_CODE], 8);
 	len += scnprintf(buf + len, PAGE_SIZE - len, "DateCode:\t%s\n", chbuf);
 	len += scnprintf(buf + len, PAGE_SIZE - len, "Identifier:\t%xh\n",
 			 (uint8_t)rdp_context->page_a0[SSF_IDENTIFIER]);