Alexander Usyskin 5cb906c703 mei: don't unset read cb ptr on reset ... Don't set read callback to NULL during reset as this leads to memory leak of both cb and its buffer. The memory is correctly freed during mei_release. The memory leak is detectable by kmemleak if application has open read call while system is going through suspend/resume. unreferenced object 0xecead780 (size 64): comm "AsyncTask #1", pid 1018, jiffies 4294949621 (age 152.440s) hex dump (first 32 bytes): 00 01 10 00 00 02 20 00 00 bf 30 f1 00 00 00 00 ...... ...0..... 00 00 00 00 00 00 00 00 36 01 00 00 00 70 da e2 ........6....p.. backtrace: [<c1a60aec>] kmemleak_alloc+0x3c/0xa0 [<c131ed56>] kmem_cache_alloc_trace+0xc6/0x190 [<c16243c9>] mei_io_cb_init+0x29/0x50 [<c1625722>] mei_cl_read_start+0x102/0x360 [<c16268f3>] mei_read+0x103/0x4e0 [<c1324b09>] vfs_read+0x89/0x160 [<c1324d5f>] SyS_read+0x4f/0x80 [<c1a7b318>] syscall_call+0x7/0xb [<ffffffff>] 0xffffffff unreferenced object 0xe2da7000 (size 512): comm "AsyncTask #1", pid 1018, jiffies 4294949621 (age 152.440s) hex dump (first 32 bytes): 00 6c da e2 7c 00 00 00 00 00 00 00 c0 eb 0c 59 .l..|..........Y 1b 00 00 00 01 00 00 00 02 10 00 00 01 00 00 00 ................ backtrace: [<c1a60aec>] kmemleak_alloc+0x3c/0xa0 [<c131f127>] __kmalloc+0xe7/0x1d0 [<c162447e>] mei_io_cb_alloc_resp_buf+0x2e/0x60 [<c162574c>] mei_cl_read_start+0x12c/0x360 [<c16268f3>] mei_read+0x103/0x4e0 [<c1324b09>] vfs_read+0x89/0x160 [<c1324d5f>] SyS_read+0x4f/0x80 [<c1a7b318>] syscall_call+0x7/0xb [<ffffffff>] 0xffffffff Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-02-07 08:16:14 -08:00
..
amthif.c	mei: fix syntax in comments and debug output	2014-01-08 15:28:27 -08:00
bus.c	mei: bus: propagate error code returned by mei_me_cl_by_id	2013-10-29 16:20:43 -07:00
client.c	mei: don't unset read cb ptr on reset	2014-02-07 08:16:14 -08:00
client.h	Merge 3.12-rc3 into char-misc-next	2013-09-29 18:27:03 -07:00
debugfs.c	mei: fix syntax in comments and debug output	2014-01-08 15:28:27 -08:00
hbm.c	mei: revamp mei reset state machine	2014-01-13 14:57:21 -08:00
hbm.h	mei: use hbm idle state to prevent spurious resets	2014-01-08 15:25:41 -08:00
hw-me-regs.h	mei: add 9 series PCH mei device ids	2013-12-05 09:48:23 -08:00
hw-me.c	mei: revamp mei reset state machine	2014-01-13 14:57:21 -08:00
hw-me.h	mei: revamp mei_data2slots	2013-03-15 11:10:48 -07:00
hw.h	mei: enable marking internal commands	2013-12-18 16:39:54 -08:00
init.c	mei: limit the number of consecutive resets	2014-01-13 14:57:21 -08:00
interrupt.c	mei: revamp mei reset state machine	2014-01-13 14:57:21 -08:00
Kconfig	mei: move mei-me to separate module	2013-03-29 08:32:21 -07:00
main.c	mei: fix syntax in comments and debug output	2014-01-08 15:28:27 -08:00
Makefile	mei: nfc: Initial nfc implementation	2013-04-10 18:56:53 -07:00
mei_dev.h	mei: limit the number of consecutive resets	2014-01-13 14:57:21 -08:00
nfc.c	mei: fix syntax in comments and debug output	2014-01-08 15:28:27 -08:00
pci-me.c	mei: revamp mei reset state machine	2014-01-13 14:57:21 -08:00
wd.c	mei: enable marking internal commands	2013-12-18 16:39:54 -08:00