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Miller" , Jeffrey Kirsher , linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org References: <20190925154831.19044-1-navid.emamdoost@gmail.com> Subject: Re: [PATCH] i40e: prevent memory leak in i40e_setup_macvlans To: Navid Emamdoost , intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org From: Markus Elfring Autocrypt: addr=Markus.Elfring@web.de; prefer-encrypt=mutual; keydata= mQINBFg2+xABEADBJW2hoUoFXVFWTeKbqqif8VjszdMkriilx90WB5c0ddWQX14h6w5bT/A8 +v43YoGpDNyhgA0w9CEhuwfZrE91GocMtjLO67TAc2i2nxMc/FJRDI0OemO4VJ9RwID6ltwt mpVJgXGKkNJ1ey+QOXouzlErVvE2fRh+KXXN1Q7fSmTJlAW9XJYHS3BDHb0uRpymRSX3O+E2 lA87C7R8qAigPDZi6Z7UmwIA83ZMKXQ5stA0lhPyYgQcM7fh7V4ZYhnR0I5/qkUoxKpqaYLp YHBczVP+Zx/zHOM0KQphOMbU7X3c1pmMruoe6ti9uZzqZSLsF+NKXFEPBS665tQr66HJvZvY GMDlntZFAZ6xQvCC1r3MGoxEC1tuEa24vPCC9RZ9wk2sY5Csbva0WwYv3WKRZZBv8eIhGMxs rcpeGShRFyZ/0BYO53wZAPV1pEhGLLxd8eLN/nEWjJE0ejakPC1H/mt5F+yQBJAzz9JzbToU 5jKLu0SugNI18MspJut8AiA1M44CIWrNHXvWsQ+nnBKHDHHYZu7MoXlOmB32ndsfPthR3GSv jN7YD4Ad724H8fhRijmC1+RpuSce7w2JLj5cYj4MlccmNb8YUxsE8brY2WkXQYS8Ivse39MX BE66MQN0r5DQ6oqgoJ4gHIVBUv/ZwgcmUNS5gQkNCFA0dWXznQARAQABtCZNYXJrdXMgRWxm cmluZyA8TWFya3VzLkVsZnJpbmdAd2ViLmRlPokCVAQTAQgAPhYhBHDP0hzibeXjwQ/ITuU9 Figxg9azBQJYNvsQAhsjBQkJZgGABQsJCAcCBhUICQoLAgQWAgMBAh4BAheAAAoJEOU9Figx g9azcyMP/iVihZkZ4VyH3/wlV3nRiXvSreqg+pGPI3c8J6DjP9zvz7QHN35zWM++1yNek7Ar OVXwuKBo18ASlYzZPTFJZwQQdkZSV+atwIzG3US50ZZ4p7VyUuDuQQVVqFlaf6qZOkwHSnk+ CeGxlDz1POSHY17VbJG2CzPuqMfgBtqIU1dODFLpFq4oIAwEOG6fxRa59qbsTLXxyw+PzRaR LIjVOit28raM83Efk07JKow8URb4u1n7k9RGAcnsM5/WMLRbDYjWTx0lJ2WO9zYwPgRykhn2 sOyJVXk9xVESGTwEPbTtfHM+4x0n0gC6GzfTMvwvZ9G6xoM0S4/+lgbaaa9t5tT/PrsvJiob kfqDrPbmSwr2G5mHnSM9M7B+w8odjmQFOwAjfcxoVIHxC4Cl/GAAKsX3KNKTspCHR0Yag78w i8duH/eEd4tB8twcqCi3aCgWoIrhjNS0myusmuA89kAWFFW5z26qNCOefovCx8drdMXQfMYv g5lRk821ZCNBosfRUvcMXoY6lTwHLIDrEfkJQtjxfdTlWQdwr0mM5ye7vd83AManSQwutgpI q+wE8CNY2VN9xAlE7OhcmWXlnAw3MJLW863SXdGlnkA3N+U4BoKQSIToGuXARQ14IMNvfeKX NphLPpUUnUNdfxAHu/S3tPTc/E/oePbHo794dnEm57LuuQINBFg2+xABEADZg/T+4o5qj4cw nd0G5pFy7ACxk28mSrLuva9tyzqPgRZ2bdPiwNXJUvBg1es2u81urekeUvGvnERB/TKekp25 4wU3I2lEhIXj5NVdLc6eU5czZQs4YEZbu1U5iqhhZmKhlLrhLlZv2whLOXRlLwi4jAzXIZAu 76mT813jbczl2dwxFxcT8XRzk9+dwzNTdOg75683uinMgskiiul+dzd6sumdOhRZR7YBT+xC wzfykOgBKnzfFscMwKR0iuHNB+VdEnZw80XGZi4N1ku81DHxmo2HG3icg7CwO1ih2jx8ik0r riIyMhJrTXgR1hF6kQnX7p2mXe6K0s8tQFK0ZZmYpZuGYYsV05OvU8yqrRVL/GYvy4Xgplm3 DuMuC7/A9/BfmxZVEPAS1gW6QQ8vSO4zf60zREKoSNYeiv+tURM2KOEj8tCMZN3k3sNASfoG fMvTvOjT0yzMbJsI1jwLwy5uA2JVdSLoWzBD8awZ2X/eCU9YDZeGuWmxzIHvkuMj8FfX8cK/ 2m437UA877eqmcgiEy/3B7XeHUipOL83gjfq4ETzVmxVswkVvZvR6j2blQVr+MhCZPq83Ota xNB7QptPxJuNRZ49gtT6uQkyGI+2daXqkj/Mot5tKxNKtM1Vbr/3b+AEMA7qLz7QjhgGJcie qp4b0gELjY1Oe9dBAXMiDwARAQABiQI8BBgBCAAmFiEEcM/SHOJt5ePBD8hO5T0WKDGD1rMF Alg2+xACGwwFCQlmAYAACgkQ5T0WKDGD1rOYSw/+P6fYSZjTJDAl9XNfXRjRRyJSfaw6N1pA Ahuu0MIa3djFRuFCrAHUaaFZf5V2iW5xhGnrhDwE1Ksf7tlstSne/G0a+Ef7vhUyeTn6U/0m +/BrsCsBUXhqeNuraGUtaleatQijXfuemUwgB+mE3B0SobE601XLo6MYIhPh8MG32MKO5kOY hB5jzyor7WoN3ETVNQoGgMzPVWIRElwpcXr+yGoTLAOpG7nkAUBBj9n9TPpSdt/npfok9ZfL /Q+ranrxb2Cy4tvOPxeVfR58XveX85ICrW9VHPVq9sJf/a24bMm6+qEg1V/G7u/AM3fM8U2m tdrTqOrfxklZ7beppGKzC1/WLrcr072vrdiN0icyOHQlfWmaPv0pUnW3AwtiMYngT96BevfA qlwaymjPTvH+cTXScnbydfOQW8220JQwykUe+sHRZfAF5TS2YCkQvsyf7vIpSqo/ttDk4+xc Z/wsLiWTgKlih2QYULvW61XU+mWsK8+ZlYUrRMpkauN4CJ5yTpvp+Orcz5KixHQmc5tbkLWf x0n1QFc1xxJhbzN+r9djSGGN/5IBDfUqSANC8cWzHpWaHmSuU3JSAMB/N+yQjIad2ztTckZY pwT6oxng29LzZspTYUEzMz3wK2jQHw+U66qBFk8whA7B2uAU1QdGyPgahLYSOa4XAEGb6wbI FEE= Message-ID: <8d7d8cf4-c016-d22c-c2cc-dc71ea407cb4@web.de> Date: Fri, 27 Sep 2019 17:04:45 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <20190925154831.19044-1-navid.emamdoost@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US X-Provags-ID: V03:K1:kMweqxyk1Sd+3Q3V4q/NBQ39VnZP6siyyu6Jc1f0n+g2dKaq9NZ g8oYD/c9IDPiCaxNfQ4LLlyFNdI54HN1qwzplSuMv/B6xacuUijdaSsYg+Xy8YUzndrlT5y qEKuXnSGzSeer07BoYybT7Yxhl3BzCmEYkp4xC4elmauHI8NsgtYVJm7ivP9Esz9aIp7NcW ljlat6B1TLlZoDH/5kobQ== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:BCQ/OYQARfA=:9UOg6doqeiWZVuGRqkohDL u1SitWRTl7sRVaAGbce6qAlmugJDq2SwIc/tKYQa6HK/UDHAr5p8K12gJz/4LLxTyBZ68IkmP IyUyDBZaBhCBKMVW/4mL1A0CWqRMGThwpaFK5NQh+C8oU+c1brlbzRwOMjEEUQXW+MRbNNB5t gCej+eetnA/zxnxc/3sKev2o9h0cs3xfeHFd0dgN8heh2TT1ai8zWOhGt5nSEY9qIBY6l4tl0 pvplNhfTbo2n8ohxrgYGW8mkeMzoGMBtrzkTAom9MEo9Wqt/CgLA1YUgcXX5k2TSyxnTym8px KyiaTsD7Hzta7rUAc7MIsYOqtLm3dQfP+qHqO2Jrj9QqdImkMBzf945wXfYqtk2ZfWH99vj9p g1i+jO2SDXPTleWJx4owQUnaSp3xrDdN+z3AxkfOaUH+2twxqLiowxzNcfIuJiYkovgSA1pon +dpHng2pdBKwQt3UhqV+TzctKh+6kuernVO+mdwGh2bb9gjPJKLjKA4RKDidEgtLe6kyo5i9e 5gJ199NFPBqapS8xZX03SK+npP5QOTMymCuJcNkmLRDm2FXrGAaXmZduDQqVyXQ0ER62qlshu ANN2wzSGezblcyToAv/Ut+oIL4w998RvPiwZp/20W06WHiPJpI6uXQzPc87qzhjwTCBKkfJ/U UbJQcWxQpErDNJwMKoDN82jdJG2qEGN5c8eNl7exxNHVaPDA+wtUefAMbIdtIQ4CV4ZdJ4e9E 1vf1/sbpFJXDjP7pymzAT/5NEpMJbhevnsOex4FX+6ul/aZVmGrNm2ekRcbT/UH/roKNYk3/x 9cr1Q3LFcx6s226bn6Dhf/OJhEH64oZF/gVZjH90E1ZXrMSZxyeI0gxtoEX/k/zff9GT51+7I 7HXKg0HsQ/IZTc3mQ9vXJhd1fJywaoro73NrFK+WLl+m/fWZSd8sm0JDaRAB7KzjBm/HQ2OfV YTAGAGSy1k+mw25Gie8yseaUyxRbRAARR9f8S0cf59HP/cCGJI23jEvo6FP7fWs22yVOTtwCt 2fnNZffh4L3IZ/5GhwW74vYm6fh0+isBjWbFNH17JmOTnteHDXBO/2u1XL6coZKgxRF1lig88 kd/JBaGVlR5bPHIbl3TpuECEViAFYeErbg4VDXW4+8DM5ywzsW/1YG0bGc8800BjTA4h9BfZo 782biWfpE3VF85DMDPJHCixYuJaUGvIxI49EMW3tJ57pTYwnZq+eZecahYe8GsEJmxhkvZhIa 2N27+HgGT8r0gviOY7dgcqvOlH9lit7AQ7YoM7XGCrK4lH7cQk5FoFrr7P00= Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > In i40e_setup_macvlans if i40e_setup_channel fails the allocated memory > for ch should be released. I suggest to improve also this change description. > +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c > @@ -7168,6 +7168,7 @@ static int i40e_setup_macvlans(struct i40e_vsi *vsi, u16 macvlan_cnt, u16 qcnt, > ch->num_queue_pairs = qcnt; > if (!i40e_setup_channel(pf, vsi, ch)) { > ret = -EINVAL; > + kfree(ch); > goto err_free; > } > ch->parent_vsi = vsi; Can it matter to perform the added function call before the error code assignment? Regards, Markus