Messages in this thread Patch in this message | | | Date | Fri, 30 Mar 2001 02:36:47 +0100 | From | Tony Hoyle <> | Subject | [PATCH] Fix SMP lockup in usbdevfs |
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This fixes a lockup when calling the USBDEVFS_SUBMITURB ioctl in an SMP kernel.
Tony
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tmh@magenta-netlogic.com http://www.nothing-on.tv --- devio.c.old Fri Mar 30 02:22:32 2001 +++ devio.c Fri Mar 30 02:12:09 2001 @@ -175,6 +175,7 @@ return NULL; memset(as, 0, assize); as->urb.number_of_packets = numisoframes; + spin_lock_init(&as->urb.lock); return as; } @@ -250,7 +251,7 @@ struct dev_state *ps = as->ps; struct siginfo sinfo; -#if 1 +#if 0 printk(KERN_DEBUG "usbdevfs: async_completed: status %d errcount %d actlen %d pipe 0x%x\n", urb->status, urb->error_count, urb->actual_length, urb->pipe); #endif | |