ata_piix: minor typo and a printk fix

The patch fixes a printk() being cut in half, some typos
and a change in comments to better reflect the specs.

Signed-off-by: Levente Kurusa <levex@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 10 insertions, 9 deletions

diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 513ad7ed0c99..6334c8d7c3f1 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -100,7 +100,7 @@
 
 enum {
         PIIX_IOCFG              = 0x54, /* IDE I/O configuration register */
-        ICH5_PMR                = 0x90, /* port mapping register */
+        ICH5_PMR                = 0x90, /* address map register */
         ICH5_PCS                = 0x92, /* port control and status */
         PIIX_SIDPR_BAR          = 5,
         PIIX_SIDPR_LEN          = 16,
@@ -233,7 +233,7 @@ static const struct pci_device_id piix_pci_tbl[] = {
           PCI_CLASS_STORAGE_IDE << 8, 0xffff00, ich6m_sata },
         /* 82801GB/GR/GH (ICH7, identical to ICH6) */
         { 0x8086, 0x27c0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata },
-        /* 2801GBM/GHM (ICH7M, identical to ICH6M) */
+        /* 82801GBM/GHM (ICH7M, identical to ICH6M)  */
         { 0x8086, 0x27c4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6m_sata },
         /* Enterprise Southbridge 2 (631xESB/632xESB) */
         { 0x8086, 0x2680, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata },
@@ -517,7 +517,7 @@ static int ich_pata_cable_detect(struct ata_port *ap)
         const struct ich_laptop *lap = &ich_laptop[0];
         u8 mask;
 
-        /* Check for specials - Acer Aspire 5602WLMi */
+        /* Check for specials */
         while (lap->device) {
                 if (lap->device == pdev->device &&
                     lap->subvendor == pdev->subsystem_vendor &&
@@ -1366,38 +1366,39 @@ static const int *piix_init_sata_map(struct pci_dev *pdev,
         const int *map;
         int i, invalid_map = 0;
         u8 map_value;
+        char buf[32];
+        char *p = buf, *end = buf + sizeof(buf);
 
         pci_read_config_byte(pdev, ICH5_PMR, &map_value);
 
         map = map_db->map[map_value & map_db->mask];
 
-        dev_info(&pdev->dev, "MAP [");
         for (i = 0; i < 4; i++) {
                 switch (map[i]) {
                 case RV:
                         invalid_map = 1;
-                        pr_cont(" XX");
+                        p += scnprintf(p, end - p, " XX");
                         break;
 
                 case NA:
-                        pr_cont(" --");
+                        p += scnprintf(p, end - p, " --");
                         break;
 
                 case IDE:
                         WARN_ON((i & 1) || map[i + 1] != IDE);
                         pinfo[i / 2] = piix_port_info[ich_pata_100];
                         i++;
-                        pr_cont(" IDE IDE");
+                        p += scnprintf(p, end - p, " IDE IDE");
                         break;
 
                 default:
-                        pr_cont(" P%d", map[i]);
+                        p += scnprintf(p, end - p, " P%d", map[i]);
                         if (i & 1)
                                 pinfo[i / 2].flags |= ATA_FLAG_SLAVE_POSS;
                         break;
                 }
         }
-        pr_cont(" ]\n");
+        dev_info(&pdev->dev, "MAP [%s ]\n", buf);
 
         if (invalid_map)
                 dev_err(&pdev->dev, "invalid MAP value %u\n", map_value);