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* [PATCH] aic7xxx: Use kstrdup
@ 2014-06-10 14:18 Himangi Saraogi
  0 siblings, 0 replies; only message in thread
From: Himangi Saraogi @ 2014-06-10 14:18 UTC (permalink / raw)
  To: Hannes Reinecke, James E.J. Bottomley, linux-scsi, linux-kernel
  Cc: julia.lawall

Use kstrdup when the goal of an allocation is copy a string into the
allocated region.

The Coccinelle semantic patch that makes this change is as follows:

// <smpl>
@@
expression from,to;
expression flag,E1,E2;
statement S;
@@

-  to = kmalloc(strlen(from) + 1,flag);
+  to = kstrdup(from, flag);
   ... when != \(from = E1 \| to = E1 \)
   if (to==NULL || ...) S
   ... when != \(from = E2 \| to = E2 \)
-  strcpy(to, from);
// </smpl>

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
---
 drivers/scsi/aic7xxx/aic7xxx_osm_pci.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
index ee05e84..0fc14da 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
@@ -225,10 +225,9 @@ ahc_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		ahc_get_pci_bus(pci),
 		ahc_get_pci_slot(pci),
 		ahc_get_pci_function(pci));
-	name = kmalloc(strlen(buf) + 1, GFP_ATOMIC);
+	name = kstrdup(buf, GFP_ATOMIC);
 	if (name == NULL)
 		return (-ENOMEM);
-	strcpy(name, buf);
 	ahc = ahc_alloc(NULL, name);
 	if (ahc == NULL)
 		return (-ENOMEM);
-- 
1.9.1

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2014-06-10 14:18 [PATCH] aic7xxx: Use kstrdup Himangi Saraogi

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