brcmfmac: 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.

In doing this, make brcmf_debugfs_add_entry() return void as no one was
even paying attention to the return value.

Cc: Arend van Spriel <arend.vanspriel@broadcom.com>
Cc: Franky Lin <franky.lin@broadcom.com>
Cc: Hante Meuleman <hante.meuleman@broadcom.com>
Cc: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Cc: Wright Feng <wright.feng@cypress.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafał Miłecki" <rafal@milecki.pl>
Cc: linux-wireless@vger.kernel.org
Cc: brcm80211-dev-list.pdl@broadcom.com
Cc: brcm80211-dev-list@cypress.com
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200429101526.GA2094124@kroah.com

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
index 120515fe8250f24da75aa36ce62b51604f344eda..eecf8a38d94aa43c502083ad3464b29dfbb98563 100644 (file)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c
@@ -47,13 +47,10 @@ struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr)
        return drvr->wiphy->debugfsdir;
 }
 
-int brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,
+void brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,
                            int (*read_fn)(struct seq_file *seq, void *data))
 {
-       struct dentry *e;
-
        WARN(!drvr->wiphy->debugfsdir, "wiphy not (yet) registered\n");
-       e = debugfs_create_devm_seqfile(drvr->bus_if->dev, fn,
-                                       drvr->wiphy->debugfsdir, read_fn);
-       return PTR_ERR_OR_ZERO(e);
+       debugfs_create_devm_seqfile(drvr->bus_if->dev, fn,
+                                   drvr->wiphy->debugfsdir, read_fn);
 }

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
index 9b221b509ade594539e508722772b9fd454a2318..4146faeed3449bb7f113eb655ea1a7689a0efd4f 100644 (file)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
@@ -116,8 +116,8 @@ struct brcmf_bus;
 struct brcmf_pub;
 #ifdef DEBUG
 struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr);
-int brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,
-                           int (*read_fn)(struct seq_file *seq, void *data));
+void brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,
+                            int (*read_fn)(struct seq_file *seq, void *data));
 int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data,
                               size_t len);
 #else
@@ -126,11 +126,9 @@ static inline struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr)
        return ERR_PTR(-ENOENT);
 }
 static inline
-int brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,
-                           int (*read_fn)(struct seq_file *seq, void *data))
-{
-       return 0;
-}
+void brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,
+                            int (*read_fn)(struct seq_file *seq, void *data))
+{ }
 static inline
 int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data,
                               size_t len)