Allocate the bouce buffer for the wireless command dynamically.
Signed-off-by: Masakazu Mokuno <mokuno@xxxxxxxxxxxxx>
---
drivers/net/ps3_gelic_wireless.c | 40 ++++++++++++++++++++++++++++++++-------
1 file changed, 33 insertions(+), 7 deletions(-)
--- a/drivers/net/ps3_gelic_wireless.c
+++ b/drivers/net/ps3_gelic_wireless.c
@@ -1524,15 +1524,20 @@ static struct iw_statistics *gelic_wl_ge
struct gelic_eurus_cmd *cmd;
struct iw_statistics *is;
struct gelic_eurus_rssi_info *rssi;
+ void *buf;
pr_debug("%s: <-\n", __func__);
+ buf = (void *)__get_free_page(GFP_KERNEL);
+ if (!buf)
+ return NULL;
+
is = &wl->iwstat;
memset(is, 0, sizeof(*is));
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
- wl->buf, sizeof(*rssi));
+ buf, sizeof(*rssi));
if (cmd && !cmd->status && !cmd->cmd_status) {
- rssi = wl->buf;
+ rssi = buf;
is->qual.level = be16_to_cpu(rssi->rssi);
is->qual.updated = IW_QUAL_LEVEL_UPDATED |
IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
@@ -1541,6 +1546,7 @@ static struct iw_statistics *gelic_wl_ge
is->qual.updated = IW_QUAL_ALL_INVALID;
kfree(cmd);
+ free_page((unsigned long)buf);
pr_debug("%s: ->\n", __func__);
return is;
}
@@ -1607,11 +1613,18 @@ static void gelic_wl_scan_complete_event
union iwreq_data data;
unsigned long this_time = jiffies;
unsigned int data_len, i, found, r;
+ void *buf;
DECLARE_MAC_BUF(mac);
pr_debug("%s:start\n", __func__);
mutex_lock(&wl->scan_lock);
+ buf = (void *)__get_free_page(GFP_KERNEL);
+ if (!buf) {
+ pr_info("%s: scan buffer alloc failed\n", __func__);
+ goto out;
+ }
+
if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
/*
* stop() may be called while scanning, ignore result
@@ -1622,7 +1635,7 @@ static void gelic_wl_scan_complete_event
}
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
- wl->buf, PAGE_SIZE);
+ buf, PAGE_SIZE);
if (!cmd || cmd->status || cmd->cmd_status) {
wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
pr_info("%s:cmd failed\n", __func__);
@@ -1649,7 +1662,7 @@ static void gelic_wl_scan_complete_event
}
/* put them in the newtork_list */
- for (i = 0, scan_info_size = 0, scan_info = wl->buf;
+ for (i = 0, scan_info_size = 0, scan_info = buf;
scan_info_size < data_len;
i++, scan_info_size += be16_to_cpu(scan_info->size),
scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
@@ -1726,6 +1739,7 @@ static void gelic_wl_scan_complete_event
wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
NULL);
out:
+ free_page((unsigned long)buf);
complete(&wl->scan_done);
mutex_unlock(&wl->scan_lock);
pr_debug("%s:end\n", __func__);
@@ -1848,7 +1862,10 @@ static int gelic_wl_do_wep_setup(struct
pr_debug("%s: <-\n", __func__);
/* we can assume no one should uses the buffer */
- wep = wl->buf;
+ wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
+ if (!wep)
+ return -ENOMEM;
+
memset(wep, 0, sizeof(*wep));
if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
@@ -1898,6 +1915,7 @@ static int gelic_wl_do_wep_setup(struct
kfree(cmd);
out:
+ free_page((unsigned long)wep);
pr_debug("%s: ->\n", __func__);
return ret;
}
@@ -1941,7 +1959,10 @@ static int gelic_wl_do_wpa_setup(struct
pr_debug("%s: <-\n", __func__);
/* we can assume no one should uses the buffer */
- wpa = wl->buf;
+ wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
+ if (!wpa)
+ return -ENOMEM;
+
memset(wpa, 0, sizeof(*wpa));
if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
@@ -2000,6 +2021,7 @@ static int gelic_wl_do_wpa_setup(struct
else if (cmd->status || cmd->cmd_status)
ret = -ENXIO;
kfree(cmd);
+ free_page((unsigned long)wpa);
pr_debug("%s: --> %d\n", __func__, ret);
return ret;
}
@@ -2018,7 +2040,10 @@ static int gelic_wl_associate_bss(struct
pr_debug("%s: <-\n", __func__);
/* do common config */
- common = wl->buf;
+ common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
+ if (!common)
+ return -ENOMEM;
+
memset(common, 0, sizeof(*common));
common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
@@ -2104,6 +2129,7 @@ static int gelic_wl_associate_bss(struct
pr_info("%s: connected\n", __func__);
}
out:
+ free_page((unsigned long)common);
pr_debug("%s: ->\n", __func__);
return ret;
}
--
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