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printk: remove obsolete dead assignment

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Commit 849f3127bb ("switch /dev/kmsg to ->write_iter()") refactored
devkmsg_write() and left over a dead assignment on the variable 'len'.

Hence, make clang-analyzer warns:

  kernel/printk/printk.c:744:4: warning: Value stored to 'len' is never read
    [clang-analyzer-deadcode.DeadStores]
                          len -= endp - line;
                          ^

Simply remove this obsolete dead assignment here.

Link: https://lore.kernel.org/r/20201130124915.7573-1-lukas.bulwahn@gmail.com
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
This commit is contained in:
Lukas Bulwahn 2020-11-30 13:49:15 +01:00 committed by Petr Mladek
parent 584da07686
commit 8d143c610b
1 changed files with 0 additions and 1 deletions
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kernel/printk/printk.c
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@ -741,7 +741,6 @@ static ssize_t devkmsg_write(struct kiocb *iocb, struct iov_iter *from)
if (LOG_FACILITY(u) != 0)
facility = LOG_FACILITY(u);
endp++;
len -= endp - line;
line = endp;
}
}