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[Qemu-devel] Re: [PATCH 07/14] ide: Change ide_init_drive() to require v


From: Kevin Wolf
Subject: [Qemu-devel] Re: [PATCH 07/14] ide: Change ide_init_drive() to require valid dinfo argument
Date: Tue, 01 Jun 2010 16:57:27 +0200
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100430 Fedora/3.0.4-2.fc12 Thunderbird/3.0.4

Am 28.05.2010 15:38, schrieb Markus Armbruster:
> IDEState members drive_serial_str and version are now left empty until
> an actual drive is connected.  Before, they got a default value that
> was overwritten when a drive got connected.  Doesn't matter, because
> they're used only while a drive is connected.
> 
> Signed-off-by: Markus Armbruster <address@hidden>
> ---
>  hw/ide/core.c |   47 +++++++++++++++++++++++++----------------------
>  1 files changed, 25 insertions(+), 22 deletions(-)
> 
> diff --git a/hw/ide/core.c b/hw/ide/core.c
> index 443ff10..f72d37f 100644
> --- a/hw/ide/core.c
> +++ b/hw/ide/core.c
> @@ -2601,30 +2601,29 @@ void ide_init_drive(IDEState *s, DriveInfo *dinfo, 
> const char *version)
>      int cylinders, heads, secs;
>      uint64_t nb_sectors;
>  
> -    if (dinfo && dinfo->bdrv) {
> -        s->bs = dinfo->bdrv;
> -        bdrv_get_geometry(s->bs, &nb_sectors);
> -        bdrv_guess_geometry(s->bs, &cylinders, &heads, &secs);
> -        s->cylinders = cylinders;
> -        s->heads = heads;
> -        s->sectors = secs;
> -        s->nb_sectors = nb_sectors;
> -        /* The SMART values should be preserved across power cycles
> -           but they aren't.  */
> -        s->smart_enabled = 1;
> -        s->smart_autosave = 1;
> -        s->smart_errors = 0;
> -        s->smart_selftest_count = 0;
> -        if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
> -            s->is_cdrom = 1;
> -            bdrv_set_change_cb(s->bs, cdrom_change_cb, s);
> -        }
> -        strncpy(s->drive_serial_str, drive_get_serial(s->bs),
> -                sizeof(s->drive_serial_str));
> +    s->bs = dinfo->bdrv;
> +    bdrv_get_geometry(s->bs, &nb_sectors);
> +    bdrv_guess_geometry(s->bs, &cylinders, &heads, &secs);
> +    s->cylinders = cylinders;
> +    s->heads = heads;
> +    s->sectors = secs;
> +    s->nb_sectors = nb_sectors;
> +    /* The SMART values should be preserved across power cycles
> +       but they aren't.  */
> +    s->smart_enabled = 1;
> +    s->smart_autosave = 1;
> +    s->smart_errors = 0;
> +    s->smart_selftest_count = 0;
> +    if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
> +        s->is_cdrom = 1;
> +        bdrv_set_change_cb(s->bs, cdrom_change_cb, s);
>      }
> -    if (strlen(s->drive_serial_str) == 0)
> +    strncpy(s->drive_serial_str, drive_get_serial(s->bs),
> +            sizeof(s->drive_serial_str));
> +    if (*s->drive_serial_str) {

This should be the other way round. It breaks the serial number in both
cases.

Kevin



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