From 9e3926df8779a69f8541c9983c6d19b097671abd Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sat, 10 Aug 2019 12:17:19 +0200 Subject: [PATCH] xgbe: no need to check return value of debugfs_create functions When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. This cleans up a lot of unneeded code and logic around the debugfs files, making all of this much simpler and easier to understand. Cc: Tom Lendacky Cc: "David S. Miller" Cc: netdev@vger.kernel.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: David S. Miller --- drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c | 107 ++++++------------- 1 file changed, 31 insertions(+), 76 deletions(-) diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c b/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c index b91143947ed2..b0a6c96b6ef4 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c @@ -438,7 +438,6 @@ static const struct file_operations xi2c_reg_value_fops = { void xgbe_debugfs_init(struct xgbe_prv_data *pdata) { - struct dentry *pfile; char *buf; /* Set defaults */ @@ -451,88 +450,48 @@ void xgbe_debugfs_init(struct xgbe_prv_data *pdata) return; pdata->xgbe_debugfs = debugfs_create_dir(buf, NULL); - if (!pdata->xgbe_debugfs) { - netdev_err(pdata->netdev, "debugfs_create_dir failed\n"); - kfree(buf); - return; - } - pfile = debugfs_create_file("xgmac_register", 0600, - pdata->xgbe_debugfs, pdata, - &xgmac_reg_addr_fops); - if (!pfile) - netdev_err(pdata->netdev, "debugfs_create_file failed\n"); + debugfs_create_file("xgmac_register", 0600, pdata->xgbe_debugfs, pdata, + &xgmac_reg_addr_fops); - pfile = debugfs_create_file("xgmac_register_value", 0600, - pdata->xgbe_debugfs, pdata, - &xgmac_reg_value_fops); - if (!pfile) - netdev_err(pdata->netdev, "debugfs_create_file failed\n"); + debugfs_create_file("xgmac_register_value", 0600, pdata->xgbe_debugfs, + pdata, &xgmac_reg_value_fops); - pfile = debugfs_create_file("xpcs_mmd", 0600, - pdata->xgbe_debugfs, pdata, - &xpcs_mmd_fops); - if (!pfile) - netdev_err(pdata->netdev, "debugfs_create_file failed\n"); + debugfs_create_file("xpcs_mmd", 0600, pdata->xgbe_debugfs, pdata, + &xpcs_mmd_fops); - pfile = debugfs_create_file("xpcs_register", 0600, - pdata->xgbe_debugfs, pdata, - &xpcs_reg_addr_fops); - if (!pfile) - netdev_err(pdata->netdev, "debugfs_create_file failed\n"); + debugfs_create_file("xpcs_register", 0600, pdata->xgbe_debugfs, pdata, + &xpcs_reg_addr_fops); - pfile = debugfs_create_file("xpcs_register_value", 0600, - pdata->xgbe_debugfs, pdata, - &xpcs_reg_value_fops); - if (!pfile) - netdev_err(pdata->netdev, "debugfs_create_file failed\n"); + debugfs_create_file("xpcs_register_value", 0600, pdata->xgbe_debugfs, + pdata, &xpcs_reg_value_fops); if (pdata->xprop_regs) { - pfile = debugfs_create_file("xprop_register", 0600, - pdata->xgbe_debugfs, pdata, - &xprop_reg_addr_fops); - if (!pfile) - netdev_err(pdata->netdev, - "debugfs_create_file failed\n"); - - pfile = debugfs_create_file("xprop_register_value", 0600, - pdata->xgbe_debugfs, pdata, - &xprop_reg_value_fops); - if (!pfile) - netdev_err(pdata->netdev, - "debugfs_create_file failed\n"); + debugfs_create_file("xprop_register", 0600, pdata->xgbe_debugfs, + pdata, &xprop_reg_addr_fops); + + debugfs_create_file("xprop_register_value", 0600, + pdata->xgbe_debugfs, pdata, + &xprop_reg_value_fops); } if (pdata->xi2c_regs) { - pfile = debugfs_create_file("xi2c_register", 0600, - pdata->xgbe_debugfs, pdata, - &xi2c_reg_addr_fops); - if (!pfile) - netdev_err(pdata->netdev, - "debugfs_create_file failed\n"); - - pfile = debugfs_create_file("xi2c_register_value", 0600, - pdata->xgbe_debugfs, pdata, - &xi2c_reg_value_fops); - if (!pfile) - netdev_err(pdata->netdev, - "debugfs_create_file failed\n"); + debugfs_create_file("xi2c_register", 0600, pdata->xgbe_debugfs, + pdata, &xi2c_reg_addr_fops); + + debugfs_create_file("xi2c_register_value", 0600, + pdata->xgbe_debugfs, pdata, + &xi2c_reg_value_fops); } if (pdata->vdata->an_cdr_workaround) { - pfile = debugfs_create_bool("an_cdr_workaround", 0600, - pdata->xgbe_debugfs, - &pdata->debugfs_an_cdr_workaround); - if (!pfile) - netdev_err(pdata->netdev, - "debugfs_create_bool failed\n"); - - pfile = debugfs_create_bool("an_cdr_track_early", 0600, - pdata->xgbe_debugfs, - &pdata->debugfs_an_cdr_track_early); - if (!pfile) - netdev_err(pdata->netdev, - "debugfs_create_bool failed\n"); + debugfs_create_bool("an_cdr_workaround", 0600, + pdata->xgbe_debugfs, + &pdata->debugfs_an_cdr_workaround); + + debugfs_create_bool("an_cdr_track_early", 0600, + pdata->xgbe_debugfs, + &pdata->debugfs_an_cdr_track_early); } kfree(buf); @@ -546,7 +505,6 @@ void xgbe_debugfs_exit(struct xgbe_prv_data *pdata) void xgbe_debugfs_rename(struct xgbe_prv_data *pdata) { - struct dentry *pfile; char *buf; if (!pdata->xgbe_debugfs) @@ -559,11 +517,8 @@ void xgbe_debugfs_rename(struct xgbe_prv_data *pdata) if (!strcmp(pdata->xgbe_debugfs->d_name.name, buf)) goto out; - pfile = debugfs_rename(pdata->xgbe_debugfs->d_parent, - pdata->xgbe_debugfs, - pdata->xgbe_debugfs->d_parent, buf); - if (!pfile) - netdev_err(pdata->netdev, "debugfs_rename failed\n"); + debugfs_rename(pdata->xgbe_debugfs->d_parent, pdata->xgbe_debugfs, + pdata->xgbe_debugfs->d_parent, buf); out: kfree(buf); -- 2.30.2