[WATCHDOG] pcwd.c firmware-info patch

Get the firmware version into the private data struct
of the ISA-PC watchdog card.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/char/watchdog/pcwd.c b/drivers/char/watchdog/pcwd.c
index c6e27e2..3d20241 100644 (file)
--- a/drivers/char/watchdog/pcwd.c
+++ b/drivers/char/watchdog/pcwd.c
@@ -146,6 +146,7 @@ static atomic_t open_allowed = ATOMIC_INIT(1);
 static char expect_close;
 static int temp_panic;
 static struct {                                /* this is private data for each ISA-PC watchdog card */
+       char fw_ver_str[6];             /* The cards firmware version */
        int revision;                   /* The card's revision */
        int supports_temp;              /* Wether or not the card has a temperature device */
        int command_mode;               /* Wether or not the card is in command mode */
@@ -238,27 +239,22 @@ static inline void pcwd_check_temperature_support(void)
                pcwd_private.supports_temp = 1;
 }
 
-static inline char *get_firmware(void)
+static inline void pcwd_get_firmware(void)
 {
        int one, ten, hund, minor;
-       char *ret;
 
-       ret = kmalloc(6, GFP_KERNEL);
-       if(ret == NULL)
-               return NULL;
+       sprintf(pcwd_private.fw_ver_str, "ERROR");
 
        if (set_command_mode()) {
                one = send_isa_command(CMD_ISA_VERSION_INTEGER);
                ten = send_isa_command(CMD_ISA_VERSION_TENTH);
                hund = send_isa_command(CMD_ISA_VERSION_HUNDRETH);
                minor = send_isa_command(CMD_ISA_VERSION_MINOR);
-               sprintf(ret, "%c.%c%c%c", one, ten, hund, minor);
+               sprintf(pcwd_private.fw_ver_str, "%c.%c%c%c", one, ten, hund, minor);
        }
-       else
-               sprintf(ret, "ERROR");
-
        unset_command_mode();
-       return(ret);
+
+       return;
 }
 
 static inline int pcwd_get_option_switches(void)
@@ -276,17 +272,15 @@ static inline int pcwd_get_option_switches(void)
 
 static void pcwd_show_card_info(void)
 {
-       char *firmware;
        int option_switches;
 
        /* Get some extra info from the hardware (in command/debug/diag mode) */
        if (pcwd_private.revision == PCWD_REVISION_A)
                printk(KERN_INFO PFX "ISA-PC Watchdog (REV.A) detected at port 0x%04x\n", pcwd_private.io_addr);
        else if (pcwd_private.revision == PCWD_REVISION_C) {
-               firmware = get_firmware();
+               pcwd_get_firmware();
                printk(KERN_INFO PFX "ISA-PC Watchdog (REV.C) detected at port 0x%04x (Firmware version: %s)\n",
-                       pcwd_private.io_addr, firmware);
-               kfree(firmware);
+                       pcwd_private.io_addr, pcwd_private.fw_ver_str);
                option_switches = pcwd_get_option_switches();
                printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n",
                        option_switches,