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authorDon Fry <pcnet32@verizon.net>2009-07-31 04:40:06 -0400
committerDavid S. Miller <davem@davemloft.net>2009-08-02 15:23:05 -0400
commitdf4e7f72f5156ef16a918da8a575ba90ec27ab77 (patch)
treee1327cc5ae7c0f92ede1bc7c6a2c6e4d4d39ee2b /drivers/net/pcnet32.c
parenta6ac65db2329e7685299666f5f7b6093c7b0f3a0 (diff)
pcnet32: remove superfluous NULL pointer check in pcnet32_probe1()
Move the debug printk() into the proper place and remove superfluous NULL pointer check in pcnet32_probe1(). This takes care of the following entry from Dan's list: drivers/net/pcnet32.c +1889 pcnet32_probe1(298) warning: variable derefenced before check 'pdev' Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Don Fry <pcnet32@verizon.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/pcnet32.c')
-rw-r--r--drivers/net/pcnet32.c18
1 files changed, 7 insertions, 11 deletions
diff --git a/drivers/net/pcnet32.c b/drivers/net/pcnet32.c
index 1c35e1d637a0..b61c97254b3f 100644
--- a/drivers/net/pcnet32.c
+++ b/drivers/net/pcnet32.c
@@ -1611,8 +1611,11 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
1611 if (pcnet32_dwio_read_csr(ioaddr, 0) == 4 1611 if (pcnet32_dwio_read_csr(ioaddr, 0) == 4
1612 && pcnet32_dwio_check(ioaddr)) { 1612 && pcnet32_dwio_check(ioaddr)) {
1613 a = &pcnet32_dwio; 1613 a = &pcnet32_dwio;
1614 } else 1614 } else {
1615 if (pcnet32_debug & NETIF_MSG_PROBE)
1616 printk(KERN_ERR PFX "No access methods\n");
1615 goto err_release_region; 1617 goto err_release_region;
1618 }
1616 } 1619 }
1617 1620
1618 chip_version = 1621 chip_version =
@@ -1852,12 +1855,6 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
1852 ((cards_found >= MAX_UNITS) || full_duplex[cards_found])) 1855 ((cards_found >= MAX_UNITS) || full_duplex[cards_found]))
1853 lp->options |= PCNET32_PORT_FD; 1856 lp->options |= PCNET32_PORT_FD;
1854 1857
1855 if (!a) {
1856 if (pcnet32_debug & NETIF_MSG_PROBE)
1857 printk(KERN_ERR PFX "No access methods\n");
1858 ret = -ENODEV;
1859 goto err_free_consistent;
1860 }
1861 lp->a = *a; 1858 lp->a = *a;
1862 1859
1863 /* prior to register_netdev, dev->name is not yet correct */ 1860 /* prior to register_netdev, dev->name is not yet correct */
@@ -1973,14 +1970,13 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
1973 1970
1974 return 0; 1971 return 0;
1975 1972
1976 err_free_ring: 1973err_free_ring:
1977 pcnet32_free_ring(dev); 1974 pcnet32_free_ring(dev);
1978 err_free_consistent:
1979 pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block), 1975 pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block),
1980 lp->init_block, lp->init_dma_addr); 1976 lp->init_block, lp->init_dma_addr);
1981 err_free_netdev: 1977err_free_netdev:
1982 free_netdev(dev); 1978 free_netdev(dev);
1983 err_release_region: 1979err_release_region:
1984 release_region(ioaddr, PCNET32_TOTAL_SIZE); 1980 release_region(ioaddr, PCNET32_TOTAL_SIZE);
1985 return ret; 1981 return ret;
1986} 1982}