Re: [PATCH] pwm: jz4740: Add trailing \n to error messages

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Hello,

On Fri, Nov 24, 2023 at 01:43:01PM +0100, Thierry Reding wrote:
> On Thu, Nov 23, 2023 at 09:33:23AM +0100, Uwe Kleine-König wrote:
> > Error messages are supposed to end in \n. Add the line terminator to the
> > two error messages that lack this.
> > 
> > Suggested-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
> > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
> > ---
> > Hello,
> > 
> > this was noticed by Paul in
> > https://lore.kernel.org/linux-pwm/ba21c20b20364a39d5ffff81dac8bd300a746dbb.camel@xxxxxxxxxxxxxxx.
> > Instead of sneaking this into a patch that probably won't get applied
> > quickly, make this explicit.
> > 
> > I based it on top of my PR that can be found at
> > https://lore.kernel.org/linux-pwm/20231121112029.gyv3gqirlycysyr4@xxxxxxxxxxxxxx,
> > but applies just fine to v6.7-rc1.
> > 
> > If you want a fixes-line, that would be:
> > 
> > Fixes: 485b56f08f33 ("pwm: jz4740: Improve algorithm of clock calculation")
> > 
> > for the first hunk and
> > 
> > Fixes: ce1f9cece057 ("pwm: jz4740: Use clocks from TCU driver")
> > 
> > for the second. If this is backported to something before
> > v5.10-rc1~57^2~11, there is another instance with a missing \n.
> > 
> > Best regards
> > Uwe
> 
> My recollection is that the newlines aren't strictly required because
> printk will typically insert them itself (unless KERN_CONT is involved
> at some point). So I don't think this really fixes anything, but I'm
> willing to pick this up for consistency.

Well, they will behave if the next printk (on the same CPU?) doesn't use
KERN_CONT. So this change fixes a really unlikely race condition.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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