[PATCH 3/7] rapidio: Adjust five function calls together with a variable assignment

From: SF Markus Elfring
Date: Fri Dec 15 2017 - 05:32:17 EST


From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 14 Dec 2017 16:07:07 +0100

The script "checkpatch.pl" pointed information out like the following.

ERROR: do not use assignment in if condition

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/rapidio/rio.c | 26 ++++++++++++++------------
1 file changed, 14 insertions(+), 12 deletions(-)

diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index f89085564c2c..b9dc932ce19e 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -252,9 +252,9 @@ int rio_request_inb_mbox(struct rio_mport *mport,
rio_init_mbox_res(res, mbox, mbox);

/* Make sure this mailbox isn't in use */
- if ((rc =
- request_resource(&mport->riores[RIO_INB_MBOX_RESOURCE],
- res)) < 0) {
+ rc = request_resource(&mport->riores[RIO_INB_MBOX_RESOURCE],
+ res);
+ if (rc < 0) {
kfree(res);
goto out;
}
@@ -335,9 +335,9 @@ int rio_request_outb_mbox(struct rio_mport *mport,
rio_init_mbox_res(res, mbox, mbox);

/* Make sure this outbound mailbox isn't in use */
- if ((rc =
- request_resource(&mport->riores[RIO_OUTB_MBOX_RESOURCE],
- res)) < 0) {
+ rc = request_resource(&mport->riores[RIO_OUTB_MBOX_RESOURCE],
+ res);
+ if (rc < 0) {
kfree(res);
goto out;
}
@@ -406,9 +406,9 @@ rio_setup_inb_dbell(struct rio_mport *mport, void *dev_id, struct resource *res,
u16 info))
{
int rc = 0;
- struct rio_dbell *dbell;
+ struct rio_dbell *dbell = kmalloc(sizeof(*dbell), GFP_KERNEL);

- if (!(dbell = kmalloc(sizeof(struct rio_dbell), GFP_KERNEL))) {
+ if (!dbell) {
rc = -ENOMEM;
goto out;
}
@@ -452,9 +452,9 @@ int rio_request_inb_dbell(struct rio_mport *mport,
rio_init_dbell_res(res, start, end);

/* Make sure these doorbells aren't in use */
- if ((rc =
- request_resource(&mport->riores[RIO_DOORBELL_RESOURCE],
- res)) < 0) {
+ rc = request_resource(&mport->riores[RIO_DOORBELL_RESOURCE],
+ res);
+ if (rc < 0) {
kfree(res);
goto out;
}
@@ -1411,7 +1411,9 @@ rio_mport_get_feature(struct rio_mport * port, int local, u16 destid,
ext_ftr_ptr, &ftr_header);
if (RIO_GET_BLOCK_ID(ftr_header) == ftr)
return ext_ftr_ptr;
- if (!(ext_ftr_ptr = RIO_GET_BLOCK_PTR(ftr_header)))
+
+ ext_ftr_ptr = RIO_GET_BLOCK_PTR(ftr_header);
+ if (!ext_ftr_ptr)
break;
}

--
2.15.1