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loader: extract rom_free() function

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The next patch will need to free a rom.  There is already code to do
this in rom_add_file().

Note that rom_add_file() uses:

  rom = g_malloc0(sizeof(*rom));
  ...
  if (rom->fw_dir) {
      g_free(rom->fw_dir);
      g_free(rom->fw_file);
  }

The conditional is unnecessary since g_free(NULL) is a no-op.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180814162739.11814-4-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Stefan Hajnoczi 2018-08-16 14:05:28 +01:00 committed by Peter Maydell
parent 191776b96a
commit e7f5993354
1 changed files with 12 additions and 9 deletions
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21
hw/core/loader.c
View File

@ -847,6 +847,17 @@ struct Rom {
static FWCfgState *fw_cfg;
static QTAILQ_HEAD(, Rom) roms = QTAILQ_HEAD_INITIALIZER(roms);
/* rom->data must be heap-allocated (do not use with rom_add_elf_program()) */
static void rom_free(Rom *rom)
{
g_free(rom->data);
g_free(rom->path);
g_free(rom->name);
g_free(rom->fw_dir);
g_free(rom->fw_file);
g_free(rom);
}
static inline bool rom_order_compare(Rom *rom, Rom *item)
{
return ((uintptr_t)(void *)rom->as > (uintptr_t)(void *)item->as) ||
@ -995,15 +1006,7 @@ err:
if (fd != -1)
close(fd);
g_free(rom->data);
g_free(rom->path);
g_free(rom->name);
if (fw_dir) {
g_free(rom->fw_dir);
g_free(rom->fw_file);
}
g_free(rom);
rom_free(rom);
return -1;
}