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| author | Claire Chang <tientzu@chromium.org> | 2019-08-06 17:56:29 +0800 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2019-08-12 18:36:09 +0200 |
| commit | c7c5ae2902bf8fe9acc75f798c0de75ac9295ccf (patch) | |
| tree | 168702c7464901f37c090751904b83d6aff7051f | |
| parent | 48d9cc9d85dde37c87abb7ac9bbec6598ba44b56 (diff) | |
| download | linux-c7c5ae2902bf8fe9acc75f798c0de75ac9295ccf.tar.bz2 | |
Bluetooth: btqca: release_firmware after qca_inject_cmd_complete_event
commit 32646db8cc28 ("Bluetooth: btqca: inject command complete event
during fw download") added qca_inject_cmd_complete_event() for certain
qualcomm chips. However, qca_download_firmware() will return without
calling release_firmware() in this case.
This leads to a memory leak like the following found by kmemleak:
unreferenced object 0xfffffff3868a5880 (size 128):
comm "kworker/u17:5", pid 347, jiffies 4294676481 (age 312.157s)
hex dump (first 32 bytes):
ac fd 00 00 00 00 00 00 00 d0 7e 17 80 ff ff ff ..........~.....
00 00 00 00 00 00 00 00 00 59 8a 86 f3 ff ff ff .........Y......
backtrace:
[<00000000978ce31d>] kmem_cache_alloc_trace+0x194/0x298
[<000000006ea0398c>] _request_firmware+0x74/0x4e4
[<000000004da31ca0>] request_firmware+0x44/0x64
[<0000000094572996>] qca_download_firmware+0x74/0x6e4 [btqca]
[<00000000b24d615a>] qca_uart_setup+0xc0/0x2b0 [btqca]
[<00000000364a6d5a>] qca_setup+0x204/0x570 [hci_uart]
[<000000006be1a544>] hci_uart_setup+0xa8/0x148 [hci_uart]
[<00000000d64c0f4f>] hci_dev_do_open+0x144/0x530 [bluetooth]
[<00000000f69f5110>] hci_power_on+0x84/0x288 [bluetooth]
[<00000000d4151583>] process_one_work+0x210/0x420
[<000000003cf3dcfb>] worker_thread+0x2c4/0x3e4
[<000000007ccaf055>] kthread+0x124/0x134
[<00000000bef1f723>] ret_from_fork+0x10/0x18
[<00000000c36ee3dd>] 0xffffffffffffffff
unreferenced object 0xfffffff37b16de00 (size 128):
comm "kworker/u17:5", pid 347, jiffies 4294676873 (age 311.766s)
hex dump (first 32 bytes):
da 07 00 00 00 00 00 00 00 50 ff 0b 80 ff ff ff .........P......
00 00 00 00 00 00 00 00 00 dd 16 7b f3 ff ff ff ...........{....
backtrace:
[<00000000978ce31d>] kmem_cache_alloc_trace+0x194/0x298
[<000000006ea0398c>] _request_firmware+0x74/0x4e4
[<000000004da31ca0>] request_firmware+0x44/0x64
[<0000000094572996>] qca_download_firmware+0x74/0x6e4 [btqca]
[<000000000cde20a9>] qca_uart_setup+0x144/0x2b0 [btqca]
[<00000000364a6d5a>] qca_setup+0x204/0x570 [hci_uart]
[<000000006be1a544>] hci_uart_setup+0xa8/0x148 [hci_uart]
[<00000000d64c0f4f>] hci_dev_do_open+0x144/0x530 [bluetooth]
[<00000000f69f5110>] hci_power_on+0x84/0x288 [bluetooth]
[<00000000d4151583>] process_one_work+0x210/0x420
[<000000003cf3dcfb>] worker_thread+0x2c4/0x3e4
[<000000007ccaf055>] kthread+0x124/0x134
[<00000000bef1f723>] ret_from_fork+0x10/0x18
[<00000000c36ee3dd>] 0xffffffffffffffff
Make sure release_firmware() is called aftre
qca_inject_cmd_complete_event() to avoid the memory leak.
Fixes: 32646db8cc28 ("Bluetooth: btqca: inject command complete event during fw download")
Signed-off-by: Claire Chang <tientzu@chromium.org>
Reviewed-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| -rw-r--r-- | drivers/bluetooth/btqca.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c index 2221935fac7e..8f0fec5acade 100644 --- a/drivers/bluetooth/btqca.c +++ b/drivers/bluetooth/btqca.c @@ -344,7 +344,7 @@ static int qca_download_firmware(struct hci_dev *hdev, */ if (config->dnld_type == ROME_SKIP_EVT_VSE_CC || config->dnld_type == ROME_SKIP_EVT_VSE) - return qca_inject_cmd_complete_event(hdev); + ret = qca_inject_cmd_complete_event(hdev); out: release_firmware(fw); |