On Mon, Jul 15, 2024 at 12:25:21PM +0300, Ilpo Järvinen wrote:
> On Fri, 12 Jul 2024, Dan Carpenter wrote:
>
> > Initialize the "str" pointer to NULL. There is a test later for if "str"
> > is NULL but in the original code it was either valid or uninitialized.
> >
> > Fixes: 9e9397a41b7b ("platform/x86/intel/tpmi/plr: Add support for the plr mailbox")
> > Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> > ---
> > Almost everyone automatically initializes stack variables to zero these days so
> > bugs like this don't show up in testing and we disabled GCC's uninitialized
> > variable warning so it's easy to miss.
> >
> > drivers/platform/x86/intel/intel_plr_tpmi.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/platform/x86/intel/intel_plr_tpmi.c b/drivers/platform/x86/intel/intel_plr_tpmi.c
> > index c1aa52c23d25..2725a1ddba92 100644
> > --- a/drivers/platform/x86/intel/intel_plr_tpmi.c
> > +++ b/drivers/platform/x86/intel/intel_plr_tpmi.c
> > @@ -162,7 +162,7 @@ static int plr_clear_cpu_status(struct tpmi_plr_die *plr_die, int cpu)
> > static void plr_print_bits(struct seq_file *s, u64 val, int bits)
> > {
> > const unsigned long mask[] = { BITMAP_FROM_U64(val) };
> > - const char *str;
> > + const char *str = NULL;
> > int bit, index;
> >
> > for_each_set_bit(bit, mask, bits) {
>
> This fix looks slightly incorrect.
s/slightly/totally/.
I'll resend.
regards,
dan carpenter
