[PATCH for-next 3/9] IB/qib: Stricter bounds checking for copy to buffer

[Dennis Dalessandro <dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>]

From: Kamenee Arumugam <kamenee.arumugam-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

Replace 'strcpy' with 'strncpy' to restrict the number
of bytes copied to the buffer.

Reviewed-by: Michael J. Ruhl <michael.j.ruhl-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Signed-off-by: Kamenee Arumugam <kamenee.arumugam-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
 drivers/infiniband/hw/qib/qib_iba7322.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c
index 92ae68c..14cadf6 100644
--- a/drivers/infiniband/hw/qib/qib_iba7322.c
+++ b/drivers/infiniband/hw/qib/qib_iba7322.c
@@ -6175,7 +6175,7 @@ static int setup_txselect(const char *str, struct kernel_param *kp)
 	unsigned long val;
 	char *n;
 
-	if (strlen(str) >= MAX_ATTEN_LEN) {
+	if (strlen(str) >= ARRAY_SIZE(txselect_list)) {
 		pr_info("txselect_values string too long\n");
 		return -ENOSPC;
 	}
@@ -6186,7 +6186,7 @@ static int setup_txselect(const char *str, struct kernel_param *kp)
 			TXDDS_TABLE_SZ + TXDDS_EXTRA_SZ + TXDDS_MFG_SZ);
 		return -EINVAL;
 	}
-	strcpy(txselect_list, str);
+	strncpy(txselect_list, str, ARRAY_SIZE(txselect_list) - 1);
 
 	list_for_each_entry(dd, &qib_dev_list, list)
 		if (dd->deviceid == PCI_DEVICE_ID_QLOGIC_IB_7322)

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