Messages in this thread Patch in this message | | | From | trix@redhat ... | Subject | [PATCH] scsi: scsi_transport_spi: fix function pointer check. | Date | Sat, 27 Jun 2020 06:32:42 -0700 |
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From: Tom Rix <trix@redhat.com>
clang static analysis flags several null function pointer problems.
drivers/scsi/scsi_transport_spi.c:374:1: warning: Called function pointer is null (null dereference) [core.CallAndMessage] spi_transport_max_attr(offset, "%d\n"); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Reviewing the store_spi_store_max macro
if (i->f->set_##field) return -EINVAL;
should be
if (!i->f->set_##field) return -EINVAL;
Signed-off-by: Tom Rix <trix@redhat.com> --- drivers/scsi/scsi_transport_spi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c index f8661062ef95..f3d5b1bbd5aa 100644 --- a/drivers/scsi/scsi_transport_spi.c +++ b/drivers/scsi/scsi_transport_spi.c @@ -339,7 +339,7 @@ store_spi_transport_##field(struct device *dev, \ struct spi_transport_attrs *tp \ = (struct spi_transport_attrs *)&starget->starget_data; \ \ - if (i->f->set_##field) \ + if (!i->f->set_##field) \ return -EINVAL; \ val = simple_strtoul(buf, NULL, 0); \ if (val > tp->max_##field) \ -- 2.18.1
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