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R. Silva" , linux-arm-kernel@lists.infradead.org (moderated list:ARM SUB-ARCHITECTURES), linux-kernel@vger.kernel.org (open list), linux-hardening@vger.kernel.org (open list:KERNEL HARDENING (not covered by other areas):Keyword:\b__counted_by(_le|_be)?\b) Subject: [PATCH] ARM: omap2: simplify allocation for omap_device Date: Wed, 25 Mar 2026 19:34:32 -0700 Message-ID: <20260326023432.54127-1-rosenp@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use a flexible array member to combine allocations. Add __counted_by for extra runtime analysis. Remove goto paths as they are not really needed anymore. Signed-off-by: Rosen Penev --- arch/arm/mach-omap2/omap_device.c | 21 ++++++--------------- arch/arm/mach-omap2/omap_device.h | 2 +- 2 files changed, 7 insertions(+), 16 deletions(-) diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_d= evice.c index 79db4c49ffc9..55f2a9d5f4df 100644 --- a/arch/arm/mach-omap2/omap_device.c +++ b/arch/arm/mach-omap2/omap_device.c @@ -309,17 +309,15 @@ static struct omap_device *omap_device_alloc(struct p= latform_device *pdev, int i; struct omap_hwmod **hwmods; =20 - od =3D kzalloc_obj(struct omap_device); - if (!od) - goto oda_exit1; + od =3D kzalloc_flex(*od, hwmods, oh_cnt); + if (!od) { + dev_err(&pdev->dev, "omap_device: build failed (%d)\n", ret); + return ERR_PTR(ret); + } =20 od->hwmods_cnt =3D oh_cnt; + memcpy(od->hwmods, ohs, oh_cnt * sizeof(*od->hwmods)); =20 - hwmods =3D kmemdup_array(ohs, oh_cnt, sizeof(*hwmods), GFP_KERNEL); - if (!hwmods) - goto oda_exit2; - - od->hwmods =3D hwmods; od->pdev =3D pdev; pdev->archdata.od =3D od; =20 @@ -329,13 +327,6 @@ static struct omap_device *omap_device_alloc(struct pl= atform_device *pdev, } =20 return od; - -oda_exit2: - kfree(od); -oda_exit1: - dev_err(&pdev->dev, "omap_device: build failed (%d)\n", ret); - - return ERR_PTR(ret); } =20 static void omap_device_delete(struct omap_device *od) diff --git a/arch/arm/mach-omap2/omap_device.h b/arch/arm/mach-omap2/omap_d= evice.h index aa8096ecb23c..9283c15c2403 100644 --- a/arch/arm/mach-omap2/omap_device.h +++ b/arch/arm/mach-omap2/omap_device.h @@ -51,11 +51,11 @@ */ struct omap_device { struct platform_device *pdev; - struct omap_hwmod **hwmods; unsigned long _driver_status; u8 hwmods_cnt; u8 _state; u8 flags; + struct omap_hwmod *hwmods[] __counted_by(hwmods_cnt); }; =20 /* Device driver interface (call via platform_data fn ptrs) */ --=20 2.53.0