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Message-Id: <20240429-fix-cocci-v3-1-3c4865f5a4b0@chromium.org>
Date: Mon, 29 Apr 2024 15:04:40 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Martin Tuma <martin.tuma@...iteqautomotive.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
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Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Chen-Yu Tsai <wens@...e.org>, Jernej Skrabec <jernej.skrabec@...il.com>,
Samuel Holland <samuel@...lland.org>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>,
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Luca Ceresoli <luca.ceresoli@...tlin.com>,
Matthias Brugger <matthias.bgg@...il.com>,
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Hans Verkuil <hverkuil@...all.nl>, Sergey Kozlov <serjk@...up.ru>,
Abylay Ospan <aospan@...up.ru>,
Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
Dmitry Osipenko <digetx@...il.com>,
Benjamin Mugnier <benjamin.mugnier@...s.st.com>,
Sylvain Petinot <sylvain.petinot@...s.st.com>,
Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
Vikash Garodia <quic_vgarodia@...cinc.com>,
Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org, linux-staging@...ts.linux.dev,
linux-sunxi@...ts.linux.dev, linux-tegra@...r.kernel.org,
linux-mediatek@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH v3 01/26] media: pci: mgb4: Refactor struct resources
The struct resource end field signifies the end address not the
relative offset from the start field i.e size == (end - start) + 1.
Amend the .end field to specify the end address not the relative size
from the offset as is currently given.
Fixes cocci check:
drivers/media/pci/mgb4/mgb4_regs.c:13:22-25: WARNING: Suspicious code. resource_size is maybe missing with res
Reviewed-by: Martin Tůma <martin.tuma@...iteqautomotive.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
drivers/media/pci/mgb4/mgb4_core.c | 4 ++--
drivers/media/pci/mgb4/mgb4_regs.c | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/media/pci/mgb4/mgb4_core.c b/drivers/media/pci/mgb4/mgb4_core.c
index 9bcf10a77fd3..60498a5abebf 100644
--- a/drivers/media/pci/mgb4/mgb4_core.c
+++ b/drivers/media/pci/mgb4/mgb4_core.c
@@ -493,13 +493,13 @@ static int mgb4_probe(struct pci_dev *pdev, const struct pci_device_id *id)
struct mgb4_dev *mgbdev;
struct resource video = {
.start = 0x0,
- .end = 0x100,
+ .end = 0xff,
.flags = IORESOURCE_MEM,
.name = "mgb4-video",
};
struct resource cmt = {
.start = 0x1000,
- .end = 0x1800,
+ .end = 0x17ff,
.flags = IORESOURCE_MEM,
.name = "mgb4-cmt",
};
diff --git a/drivers/media/pci/mgb4/mgb4_regs.c b/drivers/media/pci/mgb4/mgb4_regs.c
index 53d4e4503a74..31befd722d72 100644
--- a/drivers/media/pci/mgb4/mgb4_regs.c
+++ b/drivers/media/pci/mgb4/mgb4_regs.c
@@ -10,7 +10,7 @@
int mgb4_regs_map(struct resource *res, struct mgb4_regs *regs)
{
regs->mapbase = res->start;
- regs->mapsize = res->end - res->start;
+ regs->mapsize = resource_size(res);
if (!request_mem_region(regs->mapbase, regs->mapsize, res->name))
return -EINVAL;
--
2.44.0.769.g3c40516874-goog
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