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Wysocki" , Heikki Krogerus Cc: Andy Shevchenko , Mika Westerberg , Linus Walleij , Ard Biesheuvel , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: [PATCH v5 05/14] software node: clean up property_copy_string_array() Date: Fri, 11 Oct 2019 16:07:12 -0700 Message-Id: <20191011230721.206646-6-dmitry.torokhov@gmail.com> X-Mailer: git-send-email 2.23.0.700.g56cf767bdb-goog In-Reply-To: <20191011230721.206646-1-dmitry.torokhov@gmail.com> References: <20191011230721.206646-1-dmitry.torokhov@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Because property_copy_string_array() stores the newly allocated pointer in the destination property, we have an awkward code in property_entry_copy_data() where we fetch the new pointer from dst. Let's change property_copy_string_array() to return pointer and rely on the common path in property_entry_copy_data() to store it in destination structure. Signed-off-by: Dmitry Torokhov --- drivers/base/swnode.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c index a1f3f0994f9f..2f2248c9003c 100644 --- a/drivers/base/swnode.c +++ b/drivers/base/swnode.c @@ -337,8 +337,8 @@ static void property_entry_free_data(const struct property_entry *p) kfree(p->name); } -static int property_copy_string_array(struct property_entry *dst, - const struct property_entry *src) +static const char * const * +property_copy_string_array(const struct property_entry *src) { const char **d; size_t nval = src->length / sizeof(*d); @@ -346,7 +346,7 @@ static int property_copy_string_array(struct property_entry *dst, d = kcalloc(nval, sizeof(*d), GFP_KERNEL); if (!d) - return -ENOMEM; + return NULL; for (i = 0; i < nval; i++) { d[i] = kstrdup(src->pointer.str[i], GFP_KERNEL); @@ -354,12 +354,11 @@ static int property_copy_string_array(struct property_entry *dst, while (--i >= 0) kfree(d[i]); kfree(d); - return -ENOMEM; + return NULL; } } - dst->pointer.str = d; - return 0; + return d; } static int property_entry_copy_data(struct property_entry *dst, @@ -367,17 +366,15 @@ static int property_entry_copy_data(struct property_entry *dst, { const void *pointer = property_get_pointer(src); const void *new; - int error; if (src->is_array) { if (!src->length) return -ENODATA; if (src->type == DEV_PROP_STRING) { - error = property_copy_string_array(dst, src); - if (error) - return error; - new = dst->pointer.str; + new = property_copy_string_array(src); + if (!new) + return -ENOMEM; } else { new = kmemdup(pointer, src->length, GFP_KERNEL); if (!new) -- 2.23.0.700.g56cf767bdb-goog