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authorJeff Garzik <jeff@garzik.org>2006-10-01 10:38:22 -0400
committerJeff Garzik <jeff@garzik.org>2006-10-01 10:38:22 -0400
commit15a7c3bbe344d75e4891c7d30595899c12ccfaa1 (patch)
treedde621ec1c563a112d91f56aaa737e9ceb3c8a8b /drivers/ata
parente993835441734c184d70d3716eed78a08eeb71c2 (diff)
[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')
-rw-r--r--drivers/ata/pata_artop.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/ata/pata_artop.c b/drivers/ata/pata_artop.c
index 49565ef945f..690828eb522 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);
}