[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH v2] target/ppc/kvm: Skip current and parent directories in kv
From: |
David Gibson |
Subject: |
Re: [PATCH v2] target/ppc/kvm: Skip current and parent directories in kvmppc_find_cpu_dt |
Date: |
Wed, 13 Jul 2022 11:54:45 +1000 |
On Tue, Jul 12, 2022 at 06:08:10PM -0300, Murilo Opsfelder Araujo wrote:
> Some systems have /proc/device-tree/cpus/../clock-frequency. However,
> this is not the expected path for a CPU device tree directory.
>
> Signed-off-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
> Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
and, I believe, mea culpa.
> ---
> v2:
> - Skip current and parent directories.
>
> v1:
> 20220711193743.51456-1-muriloo@linux.ibm.com/">https://lore.kernel.org/qemu-devel/20220711193743.51456-1-muriloo@linux.ibm.com/
>
> target/ppc/kvm.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c
> index 6eed466f80..466d0d2f4c 100644
> --- a/target/ppc/kvm.c
> +++ b/target/ppc/kvm.c
> @@ -1877,6 +1877,12 @@ static int kvmppc_find_cpu_dt(char *buf, int buf_len)
> buf[0] = '\0';
> while ((dirp = readdir(dp)) != NULL) {
> FILE *f;
> +
> + /* Don't accidentally read from the current and parent directories */
> + if (strcmp(dirp->d_name, ".") == 0 || strcmp(dirp->d_name, "..") ==
> 0) {
> + continue;
> + }
> +
> snprintf(buf, buf_len, "%s%s/clock-frequency", PROC_DEVTREE_CPU,
> dirp->d_name);
> f = fopen(buf, "r");
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
signature.asc
Description: PGP signature