del_timer_sync() is not to be called in the interrupt context unless
the timer is irqsafe. but most of the functions where commits
6501c8e7d86cca5f and 382d020f4459cd77 touched were called in interrupt
context. And as a result the WARN_ON was getting triggered. Changed
to del_timer() in places which were called from interrupt.
Fixes: 382d020f4459cd77 ("Staging: rtl8712: Eliminate use of _cancel_timer"
Fixes: 6501c8e7d86cca5f ("Staging: rtl8712: Eliminate use of _cancel_timer_ex")
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=97711
Reported-by: Arek Rusniak <arek.rusi@gmail.com>
Tested-by: Arek Rusniak <arek.rusi@gmail.com>
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If memdup_user() fails then "pparmbuf" is an error pointer and we can't
pass it to kfree(). I changed the "goto _r871x_mp_ioctl_hdl_exit" to a
direct return.
I changed the earlier goto to a direct return as well for consistency
and removed the "pparmbuf = NULL" initializer since it's no longer
needed.
Fixes: 45de432775d6 ('Staging: rtl8712: Use memdup_user() instead of copy_from_user()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The result of netdev_priv is already implicitly cast to the type of the left side of the assignment. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ type T; T *x; @@ x = - (T *) netdev_priv(...) // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Removes variable comparison with 0 by using !. Done using following coccinelle script. @ disable is_zero,isnt_zero @ expression *E; expression E1,f; @@ E = f(...) <... ( - E == 0 + !E | - E != 0 + E | - 0 == E + !E | - 0 != E + E ) ...> ?E = E1 @ disable is_zero,isnt_zero @ expression *E; @@ ( E == - 0 + NULL | E != - 0 + NULL | - 0 + NULL == E | - 0 + NULL != E ) Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Delete duplicated argument to | for the state argument in the _clr_fwstate_() function call as it is redundant. Detected with coccinelle. Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use memdup_user() to avoid its duplicated implementation and simplify code. memdup_user() uses GFP_KERNEL instead of GFP_ATOMIC, which is valid because copy_from_user() might sleep and it's useless to make the allocation atomic. Found with coccinelle. Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch replace memcpy with ethe_addr_copy to address the following
warning generated by checkpatch.pl: ""Prefer ether_addr_copy over memcpy
if the Ethernet addresses are __aligned(2)"
Follwoing is the output of pahole for the relevant datastructures:
1- for "iwe.u.ap_addr.sa_data" and "wrqu->ap_addr.sa_data"
struct sockaddr {
sa_family_t sa_family; /* 0 2 */
char sa_data[14]; /* 2 14 */
/* size: 16, cachelines: 1, members: 2 */
/* last cacheline: 16 bytes */
};
struct iw_event {
__u16 len; /* 0 2 */
__u16 cmd; /* 2 2 */
/* XXX 4 bytes hole, try to pack */
union iwreq_data u; /* 8 16 */
/* size: 24, cachelines: 1, members: 3 */
/* sum members: 20, holes: 1, sum holes: 4 */
/* last cacheline: 24 bytes */
};
2- for "pnetwork->network.MacAddress" and "pcur_bss->MacAddress"
struct wlan_network {
struct list_head list; /* 0 16 */
int network_type; /* 16 4 */
int fixed; /* 20 4 */
unsigned int last_scanned; /* 24 4 */
int aid; /* 28 4 */
int join_res; /* 32 4 */
struct ndis_wlan_bssid_ex network; /* 36 884 */
/* --- cacheline 14 boundary (896 bytes) was 24 bytes ago --- */
/* size: 920, cachelines: 15, members: 7 */
/* last cacheline: 24 bytes */
};
struct ndis_wlan_bssid_ex {
u32 Length; /* 0 4 */
unsigned char MacAddress[6]; /* 4 6 */
u8 Reserved[2]; /* 10 2 */
struct ndis_802_11_ssid Ssid; /* 12 36 */
u32 Privacy; /* 48 4 */
s32 Rssi; /* 52 4 */
enum NDIS_802_11_NETWORK_TYPE NetworkTypeInUse; /* 56 4 */
struct NDIS_802_11_CONFIGURATION Configuration; /* 60 32 */
/* --- cacheline 1 boundary (64 bytes) was 28 bytes ago --- */
enum NDIS_802_11_NETWORK_INFRASTRUCTURE InfrastructureMode; /* 92 4 */
NDIS_802_11_RATES_EX SupportedRates; /* 96 16 */
u32 IELength; /* 112 4 */
u8 IEs[768]; /* 116 768 */
/* --- cacheline 13 boundary (832 bytes) was 52 bytes ago --- */
/* size: 884, cachelines: 14, members: 12 */
/* last cacheline: 52 bytes */
};
Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This fixes the following checkpatch.pl warning: WARNING: __constant_cpu_to_le16 should be cpu_to_le16 Signed-off-by: Dilek Uzulmez <dilekuzulmez@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Check if kmalloc succeded before using the pointer in memcpy. Signed-off-by: Matteo Semenzato <mattew8898@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
else after return generally is not useful. This patch removes else after return statement. Issue addressed by checkpatch.pl. Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>