• Anton Vorontsov's avatar
    serial: fix driver_name conflicts · 4feead71
    Anton Vorontsov authored
    Some drivers are using too generic "serial" name for driver_name, this
    might cause issues, like this:
    
    Freescale QUICC Engine UART device driver
    proc_dir_entry 'serial' already registered
    Call Trace:
    [cf82de50] [c0007f7c] show_stack+0x4c/0x1ac (unreliable)
    [cf82de90] [c00b03fc] proc_register+0xfc/0x1ac
    [cf82dec0] [c00b05c8] create_proc_entry+0x60/0xac
    [cf82dee0] [c00b23dc] proc_tty_register_driver+0x60/0x98
    [cf82def0] [c016dbd8] tty_register_driver+0x1b4/0x228
    [cf82df20] [c0184d70] uart_register_driver+0x144/0x194
    [cf82df40] [c030a378] ucc_uart_init+0x2c/0x94
    [cf82df50] [c02f21a0] kernel_init+0x98/0x27c
    [cf82dff0] [c000fa74] kernel_thread+0x44/0x60
    
    ^^ The board is using ucc_uart.c and 8250.c, both registered as
       "serial".
    
    This patch fixes two drivers that are using "serial" for driver_name and
    not "ttyS" for dev_name.  Drivers that are using "ttyS" for dev_name, will
    conflict anyway, so we don't bother with these.
    Signed-off-by: default avatarAnton Vorontsov <avorontsov@ru.mvista.com>
    Acked-by: default avatarAlan Cox <alan@redhat.com>
    Acked-By: default avatarTimur Tabi <timur@freescale.com>
    Acked-by: default avatarMaciej W. Rozycki <macro@linux-mips.org>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    4feead71
ucc_uart.c 40.4 KB