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[SCSI] bfa: firmware download fix

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This patch includes fixes for two issues releated to firmware download
implementation: 1) Merged memory leak fix provided by Jesper Juhl
<jj@chaosbits.net>. Basically we need to call release_firmware() after
request_firmware(). 2) fixed issues with the firmware download interface
as pointed out by Rolf Eike Beer <eike@sf-mail.de> in linux-scsi. Rearranged
the code and fixed related function protypes.

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Jing Huang 2011-04-13 11:44:03 -07:00 committed by James Bottomley
parent 7dacb64f49
commit 61338a0b34
2 changed files with 29 additions and 35 deletions
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39
drivers/scsi/bfa/bfad.c
View file

@ -57,9 +57,19 @@ int pcie_max_read_reqsz;
int bfa_debugfs_enable = 1;
int msix_disable_cb = 0, msix_disable_ct = 0;
/* Firmware releated */
u32 bfi_image_ct_fc_size, bfi_image_ct_cna_size, bfi_image_cb_fc_size;
u32 *bfi_image_ct_fc, *bfi_image_ct_cna, *bfi_image_cb_fc;
#define BFAD_FW_FILE_CT_FC "ctfw_fc.bin"
#define BFAD_FW_FILE_CT_CNA "ctfw_cna.bin"
#define BFAD_FW_FILE_CB_FC "cbfw_fc.bin"
static u32 *bfad_load_fwimg(struct pci_dev *pdev);
static void bfad_free_fwimg(void);
static void bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
u32 *bfi_image_size, char *fw_name);
static const char *msix_name_ct[] = {
"cpe0", "cpe1", "cpe2", "cpe3",
"rme0", "rme1", "rme2", "rme3",
@ -1550,7 +1560,7 @@ bfad_exit(void)
}
/* Firmware handling */
u32 *
static void
bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
u32 *bfi_image_size, char *fw_name)
{
@ -1558,27 +1568,25 @@ bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
if (request_firmware(&fw, fw_name, &pdev->dev)) {
printk(KERN_ALERT "Can't locate firmware %s\n", fw_name);
goto error;
*bfi_image = NULL;
goto out;
}
*bfi_image = vmalloc(fw->size);
if (NULL == *bfi_image) {
printk(KERN_ALERT "Fail to allocate buffer for fw image "
"size=%x!\n", (u32) fw->size);
goto error;
goto out;
}
memcpy(*bfi_image, fw->data, fw->size);
*bfi_image_size = fw->size/sizeof(u32);
return *bfi_image;
error:
return NULL;
out:
release_firmware(fw);
}
u32 *
bfad_get_firmware_buf(struct pci_dev *pdev)
static u32 *
bfad_load_fwimg(struct pci_dev *pdev)
{
if (pdev->device == BFA_PCI_DEVICE_ID_CT_FC) {
if (bfi_image_ct_fc_size == 0)
@ -1598,6 +1606,17 @@ bfad_get_firmware_buf(struct pci_dev *pdev)
}
}
static void
bfad_free_fwimg(void)
{
if (bfi_image_ct_fc_size && bfi_image_ct_fc)
vfree(bfi_image_ct_fc);
if (bfi_image_ct_cna_size && bfi_image_ct_cna)
vfree(bfi_image_ct_cna);
if (bfi_image_cb_fc_size && bfi_image_cb_fc)
vfree(bfi_image_cb_fc);
}
module_init(bfad_init);
module_exit(bfad_exit);
MODULE_LICENSE("GPL");

25
drivers/scsi/bfa/bfad_im.h
View file

@ -141,29 +141,4 @@ extern struct device_attribute *bfad_im_vport_attrs[];
irqreturn_t bfad_intx(int irq, void *dev_id);
/* Firmware releated */
#define BFAD_FW_FILE_CT_FC "ctfw_fc.bin"
#define BFAD_FW_FILE_CT_CNA "ctfw_cna.bin"
#define BFAD_FW_FILE_CB_FC "cbfw_fc.bin"
u32 *bfad_get_firmware_buf(struct pci_dev *pdev);
u32 *bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
u32 *bfi_image_size, char *fw_name);
static inline u32 *
bfad_load_fwimg(struct pci_dev *pdev)
{
return bfad_get_firmware_buf(pdev);
}
static inline void
bfad_free_fwimg(void)
{
if (bfi_image_ct_fc_size && bfi_image_ct_fc)
vfree(bfi_image_ct_fc);
if (bfi_image_ct_cna_size && bfi_image_ct_cna)
vfree(bfi_image_ct_cna);
if (bfi_image_cb_fc_size && bfi_image_cb_fc)
vfree(bfi_image_cb_fc);
}
#endif