From: Ivan Safonov <insafonov@gmail.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: simran singhal <singhalsimran0@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Colin Ian King <colin.king@canonical.com>,
Julia Lawall <julia.lawall@lip6.fr>,
Ivan Safonov <insafonov@gmail.com>,
devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org
Subject: [PATCH] staging:r8192u: replace request_module with try_then_request_module
Date: Sun, 10 Sep 2017 21:34:28 +0300 [thread overview]
Message-ID: <20170910183428.27157-1-insafonov@gmail.com> (raw)
Return value of request_module() does not handled,
so it is possible to use shorter try_then_request_module().
Signed-off-by: Ivan Safonov <insafonov@gmail.com>
---
.../staging/rtl8192u/ieee80211/ieee80211_softmac.c | 27 +++++++++++-----------
drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c | 15 ++++--------
2 files changed, 17 insertions(+), 25 deletions(-)
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
index fe6f38b7ec35..4e7908322d77 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
@@ -2948,8 +2948,9 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
struct ieee_param *param, int param_len)
{
int ret = 0;
+ const char *module = NULL;
- struct ieee80211_crypto_ops *ops;
+ struct ieee80211_crypto_ops *ops = NULL;
struct ieee80211_crypt_data **crypt;
struct ieee80211_security sec = {
@@ -2995,19 +2996,17 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
strcmp(param->u.crypt.alg, "TKIP"))
goto skip_host_crypt;
- ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
- if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) {
- request_module("ieee80211_crypt_wep");
- ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
- //set WEP40 first, it will be modified according to WEP104 or WEP40 at other place
- } else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) {
- request_module("ieee80211_crypt_tkip");
- ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
- } else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) {
- request_module("ieee80211_crypt_ccmp");
- ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
- }
- if (ops == NULL) {
+ //set WEP40 first, it will be modified according to WEP104 or WEP40 at other place
+ if (!strcmp(param->u.crypt.alg, "WEP"))
+ module = "ieee80211_crypt_wep";
+ else if (!strcmp(param->u.crypt.alg, "TKIP"))
+ module = "ieee80211_crypt_tkip";
+ else if (!strcmp(param->u.crypt.alg, "CCMP"))
+ module = "ieee80211_crypt_ccmp";
+ if (module)
+ ops = try_then_request_module(ieee80211_get_crypto_ops(param->u.crypt.alg),
+ module);
+ if (!ops) {
printk("unknown crypto alg '%s'\n", param->u.crypt.alg);
param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
ret = -EINVAL;
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
index c925e53bf013..f2fcdec9bd17 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
@@ -364,11 +364,8 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
GFP_KERNEL);
if (!new_crypt)
return -ENOMEM;
- new_crypt->ops = ieee80211_get_crypto_ops("WEP");
- if (!new_crypt->ops) {
- request_module("ieee80211_crypt_wep");
- new_crypt->ops = ieee80211_get_crypto_ops("WEP");
- }
+ new_crypt->ops = try_then_request_module(ieee80211_get_crypto_ops("WEP"),
+ "ieee80211_crypt_wep");
if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
new_crypt->priv = new_crypt->ops->init(key);
@@ -591,12 +588,8 @@ int ieee80211_wx_set_encode_ext(struct ieee80211_device *ieee,
}
printk("alg name:%s\n",alg);
- ops = ieee80211_get_crypto_ops(alg);
- if (ops == NULL) {
- request_module(module);
- ops = ieee80211_get_crypto_ops(alg);
- }
- if (ops == NULL) {
+ ops = try_then_request_module(ieee80211_get_crypto_ops(alg), module);
+ if (!ops) {
IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
dev->name, ext->alg);
printk("========>unknown crypto alg %d\n", ext->alg);
--
2.13.5
reply other threads:[~2017-09-10 18:34 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170910183428.27157-1-insafonov@gmail.com \
--to=insafonov@gmail.com \
--cc=colin.king@canonical.com \
--cc=davem@davemloft.net \
--cc=devel@driverdev.osuosl.org \
--cc=gregkh@linuxfoundation.org \
--cc=julia.lawall@lip6.fr \
--cc=linux-kernel@vger.kernel.org \
--cc=singhalsimran0@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®