Fix seq_clientmgr dereferences before NULL check

[Eugene Teo]

Fix cptr->pool dereferences before NULL check.

Coverity bug #860

Signed-off-by: Eugene Teo <eugene.teo@xxxxxxxxxxxxx>

--- linux-2.6/sound/core/seq/seq_clientmgr.c~	2006-03-15 10:05:45.000000000 +0800
+++ linux-2.6/sound/core/seq/seq_clientmgr.c	2006-03-16 09:41:05.000000000 +0800
@@ -1862,12 +1862,13 @@
 	cptr = snd_seq_client_use_ptr(info.client);
 	if (cptr == NULL)
 		return -ENOENT;
+	if (cptr->pool == NULL)
+		return -ENOENT;
 	memset(&info, 0, sizeof(info));
 	info.output_pool = cptr->pool->size;
 	info.output_room = cptr->pool->room;
 	info.output_free = info.output_pool;
-	if (cptr->pool)
-		info.output_free = snd_seq_unused_cells(cptr->pool);
+	info.output_free = snd_seq_unused_cells(cptr->pool);
 	if (cptr->type == USER_CLIENT) {
 		info.input_pool = cptr->data.user.fifo_pool_size;
 		info.input_free = info.input_pool;

-- 
1024D/A6D12F80 print D51D 2633 8DAC 04DB 7265  9BB8 5883 6DAA A6D1 2F80
main(i) { putchar(182623909 >> (i-1) * 5&31|!!(i<7)<<6) && main(++i); }

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