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| author | Murilo Opsfelder Araujo <muriloo@linux.ibm.com> | 2022-07-12 18:08:10 -0300 |
|---|---|---|
| committer | Daniel Henrique Barboza <danielhb413@gmail.com> | 2022-07-18 13:59:43 -0300 |
| commit | 1a42c69237a57805b09b50e90878c33100ea2397 (patch) | |
| tree | ea07cbedecfca0269f6a82bfb71e0d75a8bfe4b8 /target/ppc/kvm.c | |
| parent | c4b075318eb1e87de5fc942e6b987694a0e677e1 (diff) | |
| download | qemu-1a42c69237a57805b09b50e90878c33100ea2397.zip qemu-1a42c69237a57805b09b50e90878c33100ea2397.tar.gz qemu-1a42c69237a57805b09b50e90878c33100ea2397.tar.bz2 | |
target/ppc/kvm: Skip current and parent directories in kvmppc_find_cpu_dt
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>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20220712210810.35514-1-muriloo@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Diffstat (limited to 'target/ppc/kvm.c')
| -rw-r--r-- | target/ppc/kvm.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c index 6eed466..466d0d2 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"); |