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Driver disappearing during dev_io() is not a fatal error.

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This commit is contained in:
Ben Gras 2006-03-15 21:55:32 +00:00
parent 84ba9dd4d3
commit 6e7ba75acb
1 changed files with 4 additions and 2 deletions
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6
servers/fs/device.c
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@ -160,8 +160,10 @@ int flags; /* special flags, like O_NONBLOCK */
/* Call the task. */
(*dp->dmap_io)(dp->dmap_driver, &dev_mess);
if(dp->dmap_driver == NONE)
panic(__FILE__,"dev_io: driver changed to NONE", NO_NUM);
if(dp->dmap_driver == NONE) {
/* Driver has vanished. */
return EIO;
}
/* Task has completed. See if call completed. */
if (dev_mess.REP_STATUS == SUSPEND) {