From: "Yordan Karadzhov (VMware)" <y.karadz@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org,
"Yordan Karadzhov (VMware)" <y.karadz@gmail.com>
Subject: [PATCH 13/15] kernel-shark: Protect ksmodel_set_in_range_bining()
Date: Tue, 29 Sep 2020 16:41:21 +0300 [thread overview]
Message-ID: <20200929134123.178688-14-y.karadz@gmail.com> (raw)
In-Reply-To: <20200929134123.178688-1-y.karadz@gmail.com>
Handle the case when the number of bins is zero or negative.
Signed-off-by: Yordan Karadzhov (VMware) <y.karadz@gmail.com>
---
src/libkshark-model.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/src/libkshark-model.c b/src/libkshark-model.c
index 2301b06..44f829d 100644
--- a/src/libkshark-model.c
+++ b/src/libkshark-model.c
@@ -97,8 +97,19 @@ static void ksmodel_set_in_range_bining(struct kshark_trace_histo *histo,
int64_t corrected_range, delta_range, range = max - min;
struct kshark_entry *last;
+ if (n <= 0) {
+ histo->n_bins = histo->bin_size = 0;
+ histo->min = min;
+ histo->max = max;
+
+ free(histo->bin_count);
+ free(histo->map);
+
+ return;
+ }
+
/* The size of the bin must be >= 1, hence the range must be >= n. */
- if (n == 0 || range < n) {
+ if (range < n) {
range = n;
max = min + n;
}
--
2.25.1
next prev parent reply other threads:[~2020-09-29 13:42 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-29 13:41 [PATCH 00/15] Start KernelShark v2 transformation Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 01/15] kernel-shark: split kernel-shark from trace-cmd repo Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 02/15] kernel-shark: Version 1.2.0 Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 03/15] kernel-shark: Start introducing KernelShark 2.0 Yordan Karadzhov (VMware)
2020-10-07 20:08 ` Steven Rostedt
2020-09-29 13:41 ` [PATCH 04/15] kernel-shark: Use only signed types in kshark_entry Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 05/15] kernel-shark: Introduce libkshark-hash Yordan Karadzhov (VMware)
2020-10-06 21:02 ` Steven Rostedt
2020-09-29 13:41 ` [PATCH 06/15] kernel-shark: Introduce Data streams Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 07/15] kernel-shark: Add stream_id to kshark_entry Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 08/15] kernel-shark: Integrate the stream definitions with the C API Yordan Karadzhov (VMware)
2020-10-07 20:12 ` Steven Rostedt
2020-10-08 7:17 ` Yordan Karadzhov (VMware)
2020-10-07 20:29 ` Steven Rostedt
2020-09-29 13:41 ` [PATCH 09/15] kernel-shark: Provide merging of multiple data streams Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 10/15] kernel-shark: Integrate the stream definitions with data model Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 11/15] kernel-shark: Use only signed types for model defs Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 12/15] kernel-shark: Add ksmodel_get_bin() Yordan Karadzhov (VMware)
2020-09-29 13:41 ` Yordan Karadzhov (VMware) [this message]
2020-09-29 13:41 ` [PATCH 14/15] kernel-shark: Add methods for time calibration Yordan Karadzhov (VMware)
2020-09-29 13:41 ` [PATCH 15/15] kernel-shark: Integrate streams with libkshark-configio Yordan Karadzhov (VMware)
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