nand/denali: Fixed probe function bugs

Fixed a pci_resource_len function error;
Changed returning sequence of probe function;

Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 23 insertions, 21 deletions

diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 618fb42b86b0..ab960efb67f0 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -1536,7 +1536,7 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
         ret = pci_enable_device(dev);
         if (ret) {
                 printk(KERN_ERR "Spectra: pci_enable_device failed.\n");
-                goto failed_enable;
+                goto failed_alloc_memery;
         }
 
         if (id->driver_data == INTEL_CE4100) {
@@ -1547,7 +1547,7 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
                         printk(KERN_ERR "Intel CE4100 only supports"
                                         " ONFI timing mode 1 or below\n");
                         ret = -EINVAL;
-                        goto failed_enable;
+                        goto failed_enable_dev;
                 }
                 denali->platform = INTEL_CE4100;
                 mem_base = pci_resource_start(dev, 0);
@@ -1557,7 +1557,7 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
         } else {
                 denali->platform = INTEL_MRST;
                 csr_base = pci_resource_start(dev, 0);
-                csr_len = pci_resource_start(dev, 0);
+                csr_len = pci_resource_len(dev, 0);
                 mem_base = pci_resource_start(dev, 1);
                 mem_len = pci_resource_len(dev, 1);
                 if (!mem_len) {
@@ -1576,7 +1576,7 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 
         if (ret) {
                 printk(KERN_ERR "Spectra: no usable DMA configuration\n");
-                goto failed_enable;
+                goto failed_enable_dev;
         }
         denali->buf.dma_buf =
                 pci_map_single(dev, denali->buf.buf,
@@ -1585,7 +1585,7 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 
         if (pci_dma_mapping_error(dev, denali->buf.dma_buf)) {
                 printk(KERN_ERR "Spectra: failed to map DMA buffer\n");
-                goto failed_enable;
+                goto failed_enable_dev;
         }
 
         pci_set_master(dev);
@@ -1594,14 +1594,14 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
         ret = pci_request_regions(dev, DENALI_NAND_NAME);
         if (ret) {
                 printk(KERN_ERR "Spectra: Unable to request memory regions\n");
-                goto failed_req_csr;
+                goto failed_dma_map;
         }
 
         denali->flash_reg = ioremap_nocache(csr_base, csr_len);
         if (!denali->flash_reg) {
                 printk(KERN_ERR "Spectra: Unable to remap memory region\n");
                 ret = -ENOMEM;
-                goto failed_remap_csr;
+                goto failed_req_regions;
         }
         nand_dbg_print(NAND_DBG_DEBUG, "Spectra: CSR 0x%08Lx -> 0x%p (0x%lx)\n",
                        (uint64_t)csr_base, denali->flash_reg, csr_len);
@@ -1609,9 +1609,8 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
         denali->flash_mem = ioremap_nocache(mem_base, mem_len);
         if (!denali->flash_mem) {
                 printk(KERN_ERR "Spectra: ioremap_nocache failed!");
-                iounmap(denali->flash_reg);
                 ret = -ENOMEM;
-                goto failed_remap_csr;
+                goto failed_remap_reg;
         }
 
         nand_dbg_print(NAND_DBG_WARN,
@@ -1627,7 +1626,7 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
                         DENALI_NAND_NAME, denali)) {
                 printk(KERN_ERR "Spectra: Unable to allocate IRQ\n");
                 ret = -ENODEV;
-                goto failed_request_irq;
+                goto failed_remap_mem;
         }
 
         /* now that our ISR is registered, we can enable interrupts */
@@ -1664,7 +1663,7 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
          * with the nand subsystem */
         if (nand_scan_ident(&denali->mtd, LLD_MAX_FLASH_BANKS, NULL)) {
                 ret = -ENXIO;
-                goto failed_nand;
+                goto failed_req_irq;
         }
 
         /* MTD supported page sizes vary by kernel. We validate our
@@ -1674,7 +1673,7 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
                 ret = -ENODEV;
                 printk(KERN_ERR "Spectra: device size not supported by this "
                         "version of MTD.");
-                goto failed_nand;
+                goto failed_req_irq;
         }
 
         /* support for multi nand
@@ -1725,7 +1724,7 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
                         ECC_SECTOR_SIZE))) {
                 printk(KERN_ERR "Your NAND chip OOB is not large enough to"
                                 " contain 8bit ECC correction codes");
-                goto failed_nand;
+                goto failed_req_irq;
         } else {
                 denali->nand.ecc.layout = &nand_8bit_oob;
                 denali->nand.ecc.bytes = ECC_8BITS;
@@ -1769,28 +1768,31 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 
         if (nand_scan_tail(&denali->mtd)) {
                 ret = -ENXIO;
-                goto failed_nand;
+                goto failed_req_irq;
         }
 
         ret = add_mtd_device(&denali->mtd);
         if (ret) {
                 printk(KERN_ERR "Spectra: Failed to register"
                                 " MTD device: %d\n", ret);
-                goto failed_nand;
+                goto failed_req_irq;
         }
         return 0;
 
- failed_nand:
+failed_req_irq:
         denali_irq_cleanup(dev->irq, denali);
- failed_request_irq:
-        iounmap(denali->flash_reg);
+failed_remap_mem:
         iounmap(denali->flash_mem);
- failed_remap_csr:
+failed_remap_reg:
+        iounmap(denali->flash_reg);
+failed_req_regions:
         pci_release_regions(dev);
- failed_req_csr:
+failed_dma_map:
         pci_unmap_single(dev, denali->buf.dma_buf, DENALI_BUF_SIZE,
                                                         PCI_DMA_BIDIRECTIONAL);
- failed_enable:
+failed_enable_dev:
+        pci_disable_device(dev);
+failed_alloc_memery:
         kfree(denali);
         return ret;
 }