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mptfusion: make adapter prod_name[] a pointer 

The struct _MPT_ADAPTER doesn't need a full copy of the product string,
so prod_name can point to the string literal storage that the driver
already provides.

Avoids the following smatch warning:

  drivers/message/fusion/mptbase.c:2858 MptDisplayIocCapabilities()
    warn: this array is probably non-NULL. 'ioc->prod_name'

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Joe Lawrence 2014-06-25 17:06:28 -04:00 committed by Christoph Hellwig
parent 3e67c459d0
commit c9834c70ef
2 changed files with 6 additions and 7 deletions
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11
drivers/message/fusion/mptbase.c
View File

@ -1408,8 +1408,8 @@ mpt_verify_adapter(int iocid, MPT_ADAPTER **iocpp)
* in /proc/mpt/summary and /sysfs/class/scsi_host/host<X>/version_product
*
**/
static void
mpt_get_product_name(u16 vendor, u16 device, u8 revision, char *prod_name)
static const char*
mpt_get_product_name(u16 vendor, u16 device, u8 revision)
{
char *product_str = NULL;
@ -1635,8 +1635,7 @@ mpt_get_product_name(u16 vendor, u16 device, u8 revision, char *prod_name)
}
out:
if (product_str)
sprintf(prod_name, "%s", product_str);
return product_str;
}
/**
@ -1887,8 +1886,8 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "facts @ %p, pfacts[0] @ %p\n",
ioc->name, &ioc->facts, &ioc->pfacts[0]));
mpt_get_product_name(pdev->vendor, pdev->device, pdev->revision,
ioc->prod_name);
ioc->prod_name = mpt_get_product_name(pdev->vendor, pdev->device,
pdev->revision);
switch (pdev->device)
{

2
drivers/message/fusion/mptbase.h
View File

@ -605,7 +605,7 @@ typedef struct _MPT_ADAPTER
int id; /* Unique adapter id N {0,1,2,...} */
int pci_irq; /* This irq */
char name[MPT_NAME_LENGTH]; /* "iocN" */
char prod_name[MPT_NAME_LENGTH]; /* "LSIFC9x9" */
const char *prod_name; /* "LSIFC9x9" */
#ifdef CONFIG_FUSION_LOGGING
/* used in mpt_display_event_info */
char evStr[EVENT_DESCR_STR_SZ];