ums_realtek: do not use stack memory for DMA
This patch changes rts51x_read_mem, rts51x_write_mem, and rts51x_read_status to allocate temporary buffers with kmalloc. This way stack addresses are not used for DMA when these functions call rts51x_bulk_transport. Signed-off-by: NAdam Cozzette <acozzette@cs.hmc.edu> Cc: stable <stable@kernel.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
Showing
想要评论请 注册 或 登录