[ALSA] emu10k1: General cleanup, add new locks, fix alsa bug#3501, kernel bug#9304.
Signed-off-by: James Courtier-Dutton <James@superbug.co.uk>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/emu10k1/irq.c b/sound/pci/emu10k1/irq.c
index 276d08c..30bfed6 100644
--- a/sound/pci/emu10k1/irq.c
+++ b/sound/pci/emu10k1/irq.c
@@ -34,9 +34,10 @@
struct snd_emu10k1 *emu = dev_id;
unsigned int status, status2, orig_status, orig_status2;
int handled = 0;
+ int timeout = 0;
- while ((status = inl(emu->port + IPR)) != 0) {
- //snd_printk(KERN_INFO "emu10k1 irq - status = 0x%x\n", status);
+ while (((status = inl(emu->port + IPR)) != 0) && (timeout < 1000)) {
+ timeout++;
orig_status = status;
handled = 1;
if ((status & 0xffffffff) == 0xffffffff) {
@@ -200,5 +201,8 @@
}
outl(orig_status, emu->port + IPR); /* ack all */
}
+ if (timeout == 1000)
+ snd_printk(KERN_INFO "emu10k1 irq routine failure\n");
+
return IRQ_RETVAL(handled);
}