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    Subject[PATCH 1/9] Driver core: fix driver_register() return value
    From: Stas Sergeev <>

    In this patch:;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 <>
    Cc: stable <>
    Signed-off-by: Greg Kroah-Hartman <>
    drivers/base/driver.c | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)

    diff --git a/drivers/base/driver.c b/drivers/base/driver.c
    index ed2ebd3..f367885 100644
    --- a/drivers/base/driver.c
    +++ b/drivers/base/driver.c
    @@ -236,7 +236,7 @@ int driver_register(struct device_driver *drv)
    printk(KERN_ERR "Error: Driver '%s' is already registered, "
    "aborting...\n", drv->name);
    - return -EEXIST;
    + return -EBUSY;

    ret = bus_add_driver(drv);

     \ /
      Last update: 2009-10-30 23:57    [W:0.018 / U:14.172 seconds]
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