[v2] spi: spi-mpc512x-psc: Fix an unsigned comparison that can never be negative

Commit Message

[e-mail] Aug. 13, 2023, 2:12 p.m. UTC

From: Rajeshwar R Shinde <[e-mail]>

In struct mpc512x_psc_spi, the variable 'irq' is declared as an unsigned int.
The comparison of variable 'irq'  with signed int operand is incorrect. Also,
the return value from the call to platform_get_irq(pdev,0) is int and it is 
assigned to an unsigned int variable 'irq', thus redeclaring the type of 
variable 'irq' to signed int.

This fixes warning such as:
drivers/spi/spi-mpc512x-psc.c:493:5-13: 
WARNING: Unsigned expression compared with zero: mps -> irq < 0

Signed-off-by: Rajeshwar R Shinde <[e-mail]>

---
v1->v2
changed the commit message

---
 drivers/spi/spi-mpc512x-psc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Mark Brown Aug. 16, 2023, 11:32 a.m. UTC | #1

On Wed, Aug 16, 2023 at 11:38:48AM +0530, Rajeshwar Shinde wrote:
> Please verify this patch.
> Thanks & Regards

Please don't send content free pings and please allow a reasonable time
for review.  People get busy, go on holiday, attend conferences and so 
on so unless there is some reason for urgency (like critical bug fixes)
please allow at least a couple of weeks for review.  If there have been
review comments then people may be waiting for those to be addressed.

Sending content free pings adds to the mail volume (if they are seen at
all) which is often the problem and since they can't be reviewed
directly if something has gone wrong you'll have to resend the patches
anyway, so sending again is generally a better approach though there are
some other maintainers who like them - if in doubt look at how patches
for the subsystem are normally handled.

Please don't top post, reply in line with needed context.  This allows
readers to readily follow the flow of conversation and understand what
you are talking about and also helps ensure that everything in the
discussion is being addressed.

Mark Brown Sept. 3, 2023, 5:20 p.m. UTC | #2

On Sun, Sep 03, 2023 at 08:12:25PM +0530, Rajeshwar Shinde wrote:

> Remainder

Please read the mail you are replying to...

> On Wed, 16 Aug, 2023, 5:02 pm Mark Brown, <[e-mail]> wrote:
> 
> > On Wed, Aug 16, 2023 at 11:38:48AM +0530, Rajeshwar Shinde wrote:
> > > Please verify this patch.
> > > Thanks & Regards
> >
> > Please don't send content free pings and please allow a reasonable time
> > for review.  People get busy, go on holiday, attend conferences and so
> > on so unless there is some reason for urgency (like critical bug fixes)
> > please allow at least a couple of weeks for review.  If there have been
> > review comments then people may be waiting for those to be addressed.
> >
> > Sending content free pings adds to the mail volume (if they are seen at
> > all) which is often the problem and since they can't be reviewed
> > directly if something has gone wrong you'll have to resend the patches
> > anyway, so sending again is generally a better approach though there are
> > some other maintainers who like them - if in doubt look at how patches
> > for the subsystem are normally handled.
> >
> > Please don't top post, reply in line with needed context.  This allows
> > readers to readily follow the flow of conversation and understand what
> > you are talking about and also helps ensure that everything in the
> > discussion is being addressed.
> >

Mark Brown Dec. 4, 2023, 12:14 p.m. UTC | #3

On Sat, Dec 02, 2023 at 10:00:21AM +0530, Rajeshwar Shinde wrote:
> Remainder

Seriously, please read and act on what I'm writing.

Patch

diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c
index 99aeef28a..5cecca1be 100644
--- a/drivers/spi/spi-mpc512x-psc.c
+++ b/drivers/spi/spi-mpc512x-psc.c
@@ -53,7 +53,7 @@  struct mpc512x_psc_spi {
 	int type;
 	void __iomem *psc;
 	struct mpc512x_psc_fifo __iomem *fifo;
-	unsigned int irq;
+	int irq;
 	u8 bits_per_word;
 	u32 mclk_rate;