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Subject[PATCH 21/23] media: atomisp: warn if mipi de-allocation failed
Date
There's a note at the uninit function that warns about issues
with mipi frames de-allocation. print a warning if the problem
ever happens.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---

To mailbombing on a large number of people, only mailing lists were C/C on the cover.
See [PATCH 00/23] at: https://lore.kernel.org/all/cover.1637061474.git.mchehab+huawei@kernel.org/

drivers/staging/media/atomisp/pci/sh_css.c | 6 +++++-
drivers/staging/media/atomisp/pci/sh_css_mipi.c | 11 +++++++++++
drivers/staging/media/atomisp/pci/sh_css_mipi.h | 2 ++
3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/media/atomisp/pci/sh_css.c b/drivers/staging/media/atomisp/pci/sh_css.c
index 12dfecbb6145..8bcf610ccae3 100644
--- a/drivers/staging/media/atomisp/pci/sh_css.c
+++ b/drivers/staging/media/atomisp/pci/sh_css.c
@@ -20,6 +20,8 @@

#include "hmm.h"

+#include "atomisp_internal.h"
+
#include "ia_css.h"
#include "sh_css_hrt.h" /* only for file 2 MIPI */
#include "ia_css_buffer.h"
@@ -2286,7 +2288,9 @@ ia_css_uninit(void)
sh_css_params_free_default_gdc_lut();

/* TODO: JB: implement decent check and handling of freeing mipi frames */
- //assert(ref_count_mipi_allocation == 0); //mipi frames are not freed
+ if (!mipi_is_free())
+ dev_warn(atomisp_dev, "mipi frames are not freed.\n");
+
/* cleanup generic data */
sh_css_params_uninit();
ia_css_refcount_uninit();
diff --git a/drivers/staging/media/atomisp/pci/sh_css_mipi.c b/drivers/staging/media/atomisp/pci/sh_css_mipi.c
index 87f1df575d9f..cfaa4719177c 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_mipi.c
+++ b/drivers/staging/media/atomisp/pci/sh_css_mipi.c
@@ -261,6 +261,17 @@ mipi_init(void)
ref_count_mipi_allocation[i] = 0;
}

+bool mipi_is_free(void)
+{
+ unsigned int i;
+
+ for (i = 0; i < N_CSI_PORTS; i++)
+ if (ref_count_mipi_allocation[i])
+ return false;
+
+ return true;
+}
+
int
calculate_mipi_buff_size(
struct ia_css_stream_config *stream_cfg,
diff --git a/drivers/staging/media/atomisp/pci/sh_css_mipi.h b/drivers/staging/media/atomisp/pci/sh_css_mipi.h
index 52f08a103883..dffec2205620 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_mipi.h
+++ b/drivers/staging/media/atomisp/pci/sh_css_mipi.h
@@ -23,6 +23,8 @@
void
mipi_init(void);

+bool mipi_is_free(void);
+
int
allocate_mipi_frames(struct ia_css_pipe *pipe, struct ia_css_stream_info *info);

--
2.33.1
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