From: Stanislaw Gruszka sgruszka@redhat.com
[ Upstream commit c40a45a465e9eab72cfdd3ab69d15cf8ef8b89c8 ]
Patch fixes splat:
r8822be 0000:04:00.0: DMA-API: device driver frees DMA memory with different size [device address=0x0000000078477000] [map size=4096 bytes] [unmap size=424 bytes] <snip> Call Trace: debug_dma_unmap_page+0xa5/0xb0 ? unmap_single+0x2f/0x40 _rtl8822be_send_bcn_or_cmd_packet+0x2c5/0x300 [r8822be] ? _rtl8822be_send_bcn_or_cmd_packet+0x2c5/0x300 [r8822be] rtl8822b_halmac_cb_write_data_rsvd_page+0x51/0xc0 [r8822be] _halmac_write_data_rsvd_page+0x22/0x30 [r8822be] halmac_download_rsvd_page_88xx+0xee/0x1f0 [r8822be] halmac_dlfw_to_mem_88xx+0x80/0x120 [r8822be] halmac_download_firmware_88xx.part.47+0x477/0x600 [r8822be] halmac_download_firmware_88xx+0x32/0x40 [r8822be] rtl_halmac_dlfw+0x70/0x120 [r8822be] rtl_halmac_init_hal+0x5f/0x1b0 [r8822be] rtl8822be_hw_init+0x8a2/0x1040 [r8822be]
Signed-off-by: Stanislaw Gruszka sgruszka@redhat.com Acked-by: Larry Finger Larry.Finger@lwfinger.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin alexander.levin@verizon.com --- drivers/staging/rtlwifi/rtl8822be/fw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/rtlwifi/rtl8822be/fw.c b/drivers/staging/rtlwifi/rtl8822be/fw.c index 8e24da16752c..a2cc54866e79 100644 --- a/drivers/staging/rtlwifi/rtl8822be/fw.c +++ b/drivers/staging/rtlwifi/rtl8822be/fw.c @@ -419,7 +419,7 @@ static bool _rtl8822be_send_bcn_or_cmd_packet(struct ieee80211_hw *hw, dma_addr = rtlpriv->cfg->ops->get_desc( hw, (u8 *)pbd_desc, true, HW_DESC_TXBUFF_ADDR);
- pci_unmap_single(rtlpci->pdev, dma_addr, skb->len, + pci_unmap_single(rtlpci->pdev, dma_addr, pskb->len, PCI_DMA_TODEVICE); kfree_skb(pskb);