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Subject[RFC][PATCH] mkiss.[ch]
The following patch does (hopefully):
1) change MOD_xxx_USE_COUNT to module calls
2) change cli() to use spin_lock

Can someone check:
a) ist it right in terms of usage (it's my first try for cleanup)
b) does it work with the appropriate HW, since im no ham-guy

Bernd

--- linux-2.5.56/drivers/net/hamradio/mkiss.h Sun Jan 12 14:22:50 2003
+++ mkiss.h Sun Jan 12 14:24:22 2003
@@ -55,6 +55,7 @@
#define CRC_MODE_NONE 0
#define CRC_MODE_FLEX 1
#define CRC_MODE_SMACK 2
+ spinlock_t driver_lock;
};

#define AX25_MAGIC 0x5316
--- linux-2.5.56/drivers/net/hamradio/mkiss.c Mon Nov 18 05:29:57 2002
+++ mkiss.c Sun Jan 12 15:55:06 2003
@@ -253,8 +253,7 @@
return;
}

- save_flags(flags);
- cli();
+ spin_lock_irqsave(&ax->driver_lock, flags);

oxbuff = ax->xbuff;
ax->xbuff = xbuff;
@@ -285,7 +284,7 @@
ax->mtu = dev->mtu + 73;
ax->buffsize = len;

- restore_flags(flags);
+ spin_unlock_irqrestore(&ax->driver_lock, flags);

if (oxbuff != NULL)
kfree(oxbuff);
@@ -676,7 +675,7 @@
tmp_ax->mkiss = ax;
}

- MOD_INC_USE_COUNT;
+ try_module_get(THIS_MODULE);

/* Done. We have linked the TTY line to a channel. */
return ax->dev->base_addr;
@@ -696,7 +695,7 @@
ax->tty = NULL;

ax_free(ax);
- MOD_DEC_USE_COUNT;
+ module_put(THIS_MODULE);
}


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