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Subject[PATCH] drivers/scsi/ips.c check_region -> request_region (241p9)
Hi.

The following patch makes drivers/scsi/ips.c use the return code
of request_region instead of calling check_region. It also moves
some resource freeing to ips_free since that made my error path
cleaner.

It applies cleanly against ac10 and 241p9.

Please comment.


--- linux-ac10-clean/drivers/scsi/ips.c Sat Jan 20 15:17:13 2001
+++ linux-ac10/drivers/scsi/ips.c Sun Jan 21 19:17:07 2001
@@ -668,7 +668,7 @@
ips_name, ips_next_controller, mem_addr, mem_len);

#if LINUX_VERSION_CODE >= LinuxVersionCode(2,3,17)
- if (check_mem_region(mem_addr, mem_len)) {
+ if (!request_mem_region(mem_addr, mem_len, "ips")) {
/* Couldn't allocate io space */
printk(KERN_WARNING "(%s%d) couldn't allocate IO space %x len %d.\n",
ips_name, ips_next_controller, io_addr, io_len);
@@ -677,8 +677,6 @@

continue;
}
-
- request_mem_region(mem_addr, mem_len, "ips");
#endif

base = mem_addr & PAGE_MASK;
@@ -696,7 +694,7 @@
DEBUG_VAR(1, "(%s%d) detect, IO region %x, size: %d",
ips_name, ips_next_controller, io_addr, io_len);

- if (check_region(io_addr, io_len)) {
+ if (!request_region(io_addr, io_len, "ips")) {
/* Couldn't allocate io space */
printk(KERN_WARNING "(%s%d) couldn't allocate IO space %x len %d.\n",
ips_name, ips_next_controller, io_addr, io_len);
@@ -706,7 +704,6 @@
continue;
}

- request_region(io_addr, io_len, "ips");
}

/* get planer status */
@@ -1031,6 +1028,7 @@

if (!ha->active) {
scsi_unregister(sh);
+ ips_free(ha); /* To free request_*'ed resources. */
ips_ha[i] = NULL;
ips_sh[i] = NULL;

@@ -1152,15 +1150,6 @@
/* free extra memory */
ips_free(ha);

- /* Free I/O Region */
- if (ha->io_addr)
- release_region(ha->io_addr, ha->io_len);
-
-#if LINUX_VERSION_CODE >= LinuxVersionCode(2,3,17)
- if (ha->mem_addr)
- release_mem_region(ha->mem_addr, ha->mem_len);
-#endif
-
/* free IRQ */
free_irq(ha->irq, ha);

@@ -4531,6 +4520,15 @@
ha->mem_ptr = NULL;
ha->mem_addr = 0;
}
+
+#if LINUX_VERSION_CODE >= LinuxVersionCode(2,3,17)
+ if (ha->mem_addr)
+ release_mem_region(ha->mem_addr, ha->mem_len);
+#endif
+
+ if (ha->io_addr)
+ release_region(ha->io_addr, ha->io_len);
+
}
}

--
Regards,
Rasmus(rasmus@jaquet.dk)

"You who hate the Jews so, why did you adopt their religion?"
-- Friedrich Nietzsche, addressing anti-semitic Christians
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