Driver core: fix driver_register() return value
In this patch: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=16dc42e018c2868211b4928f20a957c0c216126c the check was added for another driver to already claim the same device on the same bus. But the returned error code was wrong: to modprobe, the -EEXIST means that _this_ driver is already installed. It therefore doesn't produce the needed error message when _another_ driver is trying to register for the same device. Returning -EBUSY fixes the problem. Signed-off-by: Stas Sergeev <stsp@aknet.ru> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
parent
2e2ec95235
commit
39acbc12af
|
@ -236,7 +236,7 @@ int driver_register(struct device_driver *drv)
|
||||||
put_driver(other);
|
put_driver(other);
|
||||||
printk(KERN_ERR "Error: Driver '%s' is already registered, "
|
printk(KERN_ERR "Error: Driver '%s' is already registered, "
|
||||||
"aborting...\n", drv->name);
|
"aborting...\n", drv->name);
|
||||||
return -EEXIST;
|
return -EBUSY;
|
||||||
}
|
}
|
||||||
|
|
||||||
ret = bus_add_driver(drv);
|
ret = bus_add_driver(drv);
|
||||||
|
|
Loading…
Reference in New Issue