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ntb: ntb_pingpong: no need to check the return value of debugfs calls

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There is no need to check the return value of debugfs_create_atomic_t as
nothing happens with the error.  Also, the code will never return NULL,
so this check has never caught anything :)

Fix this by removing the check entirely.

Cc: Jon Mason <jdmason@kudzu.us>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Allen Hubbe <allenbh@gmail.com>
Cc: linux-ntb@googlegroups.com
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/20191011131919.GA1174815@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2019-10-11 15:19:19 +02:00
parent 8e5802635f
commit be5767341c
1 changed files with 1 additions and 4 deletions
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5
drivers/ntb/test/ntb_pingpong.c
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@ -354,13 +354,10 @@ static void pp_clear_ctx(struct pp_ctx *pp)
static void pp_setup_dbgfs(struct pp_ctx *pp) static void pp_setup_dbgfs(struct pp_ctx *pp)
{ {
struct pci_dev *pdev = pp->ntb->pdev; struct pci_dev *pdev = pp->ntb->pdev;
void *ret;
pp->dbgfs_dir = debugfs_create_dir(pci_name(pdev), pp_dbgfs_topdir); pp->dbgfs_dir = debugfs_create_dir(pci_name(pdev), pp_dbgfs_topdir);
ret = debugfs_create_atomic_t("count", 0600, pp->dbgfs_dir, &pp->count); debugfs_create_atomic_t("count", 0600, pp->dbgfs_dir, &pp->count);
if (!ret)
dev_warn(&pp->ntb->dev, "DebugFS unsupported\n");
} }
static void pp_clear_dbgfs(struct pp_ctx *pp) static void pp_clear_dbgfs(struct pp_ctx *pp)