From 4d850406a859d3a5dcfca74eb9caa76ccc064ab3 Mon Sep 17 00:00:00 2001 From: Gonglei Date: Thu, 5 Mar 2015 11:05:20 +0800 Subject: microblaze: fix memory leak When not assign a -dtb argument, the variable dtb_filename storage returned from qemu_find_file(), which should be freed after use. Alternatively we define a local variable filename, with 'char *' type, free after use. Signed-off-by: Gonglei Reviewed-by: Peter Crosthwaite Reviewed-by: Edgar E. Iglesias Signed-off-by: Michael Tokarev --- hw/microblaze/boot.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/hw/microblaze/boot.c b/hw/microblaze/boot.c index 38c59dbe9d..4c44317b65 100644 --- a/hw/microblaze/boot.c +++ b/hw/microblaze/boot.c @@ -113,15 +113,15 @@ void microblaze_load_kernel(MicroBlazeCPU *cpu, hwaddr ddr_base, const char *kernel_filename; const char *kernel_cmdline; const char *dtb_arg; + char *filename = NULL; machine_opts = qemu_get_machine_opts(); kernel_filename = qemu_opt_get(machine_opts, "kernel"); kernel_cmdline = qemu_opt_get(machine_opts, "append"); dtb_arg = qemu_opt_get(machine_opts, "dtb"); - if (dtb_arg) { /* Preference a -dtb argument */ - dtb_filename = dtb_arg; - } else { /* default to pcbios dtb as passed by machine_init */ - dtb_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, dtb_filename); + /* default to pcbios dtb as passed by machine_init */ + if (!dtb_arg) { + filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, dtb_filename); } boot_info.machine_cpu_reset = machine_cpu_reset; @@ -203,7 +203,8 @@ void microblaze_load_kernel(MicroBlazeCPU *cpu, hwaddr ddr_base, boot_info.initrd_start, boot_info.initrd_end, kernel_cmdline, - dtb_filename); + /* Preference a -dtb argument */ + dtb_arg ? dtb_arg : filename); } - + g_free(filename); } -- cgit v1.2.3