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Re: [Qemu-devel] [PATCH v3] monitor: Fix return type of monitor_fdset_du
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH v3] monitor: Fix return type of monitor_fdset_dup_fd_find |
Date: |
Tue, 28 May 2019 08:08:29 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) |
David, got anything queued for the monitor? If yes, can you stick this
in? If not, I can handle it.
Yury Kotov <address@hidden> writes:
> monitor_fdset_dup_fd_find_remove() and monitor_fdset_dup_fd_find()
> return mon_fdset->id which is int64_t. Downcasting from int64_t to int
> leads to a bug with removing fd from fdset with id >= 2^32.
> So, fix return types for these function.
>
> Signed-off-by: Yury Kotov <address@hidden>
> Reviewed-by: Markus Armbruster <address@hidden>
> ---
> include/monitor/monitor.h | 2 +-
> monitor.c | 4 ++--
> stubs/fdset.c | 2 +-
> 3 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/include/monitor/monitor.h b/include/monitor/monitor.h
> index 86656297f1..51f048d61f 100644
> --- a/include/monitor/monitor.h
> +++ b/include/monitor/monitor.h
> @@ -45,6 +45,6 @@ AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id,
> int64_t fdset_id,
> int monitor_fdset_get_fd(int64_t fdset_id, int flags);
> int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd);
> void monitor_fdset_dup_fd_remove(int dup_fd);
> -int monitor_fdset_dup_fd_find(int dup_fd);
> +int64_t monitor_fdset_dup_fd_find(int dup_fd);
>
> #endif /* MONITOR_H */
> diff --git a/monitor.c b/monitor.c
> index 6428eb3b7e..a0e637f7d6 100644
> --- a/monitor.c
> +++ b/monitor.c
> @@ -2602,7 +2602,7 @@ err:
> return -1;
> }
>
> -static int monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove)
> +static int64_t monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove)
> {
> MonFdset *mon_fdset;
> MonFdsetFd *mon_fdset_fd_dup;
> @@ -2630,7 +2630,7 @@ err:
> return -1;
> }
>
> -int monitor_fdset_dup_fd_find(int dup_fd)
> +int64_t monitor_fdset_dup_fd_find(int dup_fd)
> {
> return monitor_fdset_dup_fd_find_remove(dup_fd, false);
> }
> diff --git a/stubs/fdset.c b/stubs/fdset.c
> index 4f3edf2ea4..a1b8f41f62 100644
> --- a/stubs/fdset.c
> +++ b/stubs/fdset.c
> @@ -7,7 +7,7 @@ int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd)
> return -1;
> }
>
> -int monitor_fdset_dup_fd_find(int dup_fd)
> +int64_t monitor_fdset_dup_fd_find(int dup_fd)
> {
> return -1;
> }