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| author | Jeff Garzik <jeff@garzik.org> | 2006-10-01 10:38:22 -0400 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-10-01 10:38:22 -0400 |
| commit | 15a7c3bbe344d75e4891c7d30595899c12ccfaa1 (patch) | |
| tree | dde621ec1c563a112d91f56aaa737e9ceb3c8a8b /drivers/ata/pata_artop.c | |
| parent | e993835441734c184d70d3716eed78a08eeb71c2 (diff) | |
| download | lwn-15a7c3bbe344d75e4891c7d30595899c12ccfaa1.tar.gz lwn-15a7c3bbe344d75e4891c7d30595899c12ccfaa1.zip | |
[libata] pata_artop: kill gcc warning
gcc complains thusly:
drivers/ata/pata_artop.c: In function ‘artop_init_one’:
drivers/ata/pata_artop.c:429: warning: ‘info’ may be used uninitialized in this function
While this warning is indeed bogus, even with improved static analysis
and value range propagation, gcc will probably never be able to detect
this.
Add a BUG_ON() to trap invalid driver_data entries in the PCI table.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/pata_artop.c')
| -rw-r--r-- | drivers/ata/pata_artop.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/ata/pata_artop.c b/drivers/ata/pata_artop.c index 49565ef945f8..690828eb5226 100644 --- a/drivers/ata/pata_artop.c +++ b/drivers/ata/pata_artop.c @@ -426,7 +426,7 @@ static int artop_init_one (struct pci_dev *pdev, const struct pci_device_id *id) .port_ops = &artop6260_ops, }; struct ata_port_info *port_info[2]; - struct ata_port_info *info; + struct ata_port_info *info = NULL; int ports = 2; if (!printed_version++) @@ -470,6 +470,9 @@ static int artop_init_one (struct pci_dev *pdev, const struct pci_device_id *id) pci_write_config_byte(pdev, 0x4a, (reg & ~0x01) | 0x80); } + + BUG_ON(info == NULL); + port_info[0] = port_info[1] = info; return ata_pci_init_one(pdev, port_info, ports); } |