diff options
| author |   Markus Elfring <elfring@users.sourceforge.net> | 2018-02-06 15:39:44 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2018-02-06 18:32:46 -0800 |
| commit | 93dd49afc27b72cc621b3d9c2ff86052db9c8222 (patch) | |
| tree | c808301535d080c6bbf66ebfea12912378b835fa /drivers/rapidio | |
| parent | rapidio: delete an error message for a failed memory allocation in rio_init_mports() (diff) | |
| download | wireguard-linux-93dd49afc27b72cc621b3d9c2ff86052db9c8222.tar.xz wireguard-linux-93dd49afc27b72cc621b3d9c2ff86052db9c8222.zip | |
rapidio: adjust 12 checks for null pointers
checkpatch pointed information out like the following.
Comparison to NULL could be written ...
Thus fix the affected source code places.
Link: http://lkml.kernel.org/r/739f9f1c-3ebe-c21b-c5e2-31976cfbc0ee@users.sourceforge.net
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rapidio')
| -rw-r--r-- | drivers/rapidio/rio.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c index 032ede23a8cb..f89085564c2c 100644 --- a/drivers/rapidio/rio.c +++ b/drivers/rapidio/rio.c @@ -243,7 +243,7 @@ int rio_request_inb_mbox(struct rio_mport *mport, int rc = -ENOSYS; struct resource *res; - if (mport->ops->open_inb_mbox == NULL) + if (!mport->ops->open_inb_mbox) goto out; res = kzalloc(sizeof(struct resource), GFP_KERNEL); @@ -326,7 +326,7 @@ int rio_request_outb_mbox(struct rio_mport *mport, int rc = -ENOSYS; struct resource *res; - if (mport->ops->open_outb_mbox == NULL) + if (!mport->ops->open_outb_mbox) goto out; res = kzalloc(sizeof(struct resource), GFP_KERNEL); @@ -632,7 +632,7 @@ int rio_request_inb_pwrite(struct rio_dev *rdev, int rc = 0; spin_lock(&rio_global_list_lock); - if (rdev->pwcback != NULL) + if (rdev->pwcback) rc = -ENOMEM; else rdev->pwcback = pwcback; @@ -975,7 +975,7 @@ rio_chk_dev_route(struct rio_dev *rdev, struct rio_dev **nrdev, int *npnum) rdev = rdev->prev; } - if (prev == NULL) + if (!prev) goto err_out; p_port = prev->rswitch->route_table[rdev->destid]; @@ -1054,7 +1054,7 @@ rio_get_input_status(struct rio_dev *rdev, int pnum, u32 *lnkresp) RIO_MNT_REQ_CMD_IS); /* Exit if the response is not expected */ - if (lnkresp == NULL) + if (!lnkresp) return 0; checkcount = 3; @@ -1696,7 +1696,7 @@ int rio_route_add_entry(struct rio_dev *rdev, spin_lock(&rdev->rswitch->lock); - if (ops == NULL || ops->add_entry == NULL) { + if (!ops || !ops->add_entry) { rc = rio_std_route_add_entry(rdev->net->hport, rdev->destid, rdev->hopcount, table, route_destid, route_port); @@ -1749,7 +1749,7 @@ int rio_route_get_entry(struct rio_dev *rdev, u16 table, spin_lock(&rdev->rswitch->lock); - if (ops == NULL || ops->get_entry == NULL) { + if (!ops || !ops->get_entry) { rc = rio_std_route_get_entry(rdev->net->hport, rdev->destid, rdev->hopcount, table, route_destid, route_port); @@ -1797,7 +1797,7 @@ int rio_route_clr_table(struct rio_dev *rdev, u16 table, int lock) spin_lock(&rdev->rswitch->lock); - if (ops == NULL || ops->clr_table == NULL) { + if (!ops || !ops->clr_table) { rc = rio_std_route_clr_table(rdev->net->hport, rdev->destid, rdev->hopcount, table); } else if (try_module_get(ops->owner)) { @@ -1889,7 +1889,7 @@ struct dma_async_tx_descriptor *rio_dma_prep_xfer(struct dma_chan *dchan, { struct rio_dma_ext rio_ext; - if (dchan->device->device_prep_slave_sg == NULL) { + if (!dchan->device->device_prep_slave_sg) { pr_err("%s: prep_rio_sg == NULL\n", __func__); return NULL; } |