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    Subject[PATCH] rocket: Fix mutex locking compile warning
    Date
    This fixes

    drivers/char/rocket.c: In function ‘rp_write’:
    drivers/char/rocket.c:1705: warning: ignoring return value of ‘mutex_lock_interruptible’, declared with attribute warn_unused_result

    Signed-off-by: Michael Buesch <mb@bu3sch.de>

    Index: bu3sch-wireless-dev/drivers/char/rocket.c
    ===================================================================
    --- bu3sch-wireless-dev.orig/drivers/char/rocket.c 2007-05-18 18:09:48.000000000 +0200
    +++ bu3sch-wireless-dev/drivers/char/rocket.c 2007-07-12 01:52:44.000000000 +0200
    @@ -1702,7 +1702,8 @@ static int rp_write(struct tty_struct *t
    if (count <= 0 || rocket_paranoia_check(info, "rp_write"))
    return 0;

    - mutex_lock_interruptible(&info->write_mtx);
    + if (mutex_lock_interruptible(&info->write_mtx))
    + return -ERESTARTSYS;

    #ifdef ROCKET_DEBUG_WRITE
    printk(KERN_INFO "rp_write %d chars...", count);
    --
    Greetings Michael.
    -
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