aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/bcm27xx/patches-5.4/950-0664-driver-char-rpivid-Don-t-map-more-than-wanted.patch
diff options
context:
space:
mode:
authorÁlvaro Fernández Rojas <noltari@gmail.com>2021-02-18 18:04:33 +0100
committerÁlvaro Fernández Rojas <noltari@gmail.com>2021-02-18 23:42:32 +0100
commitf07e572f6447465d8938679533d604e402b0f066 (patch)
treecb333bd2a67e59e7c07659514850a0fd55fc825e /target/linux/bcm27xx/patches-5.4/950-0664-driver-char-rpivid-Don-t-map-more-than-wanted.patch
parent5d3a6fd970619dfc55f8259035c3027d7613a2a6 (diff)
downloadupstream-f07e572f6447465d8938679533d604e402b0f066.tar.gz
upstream-f07e572f6447465d8938679533d604e402b0f066.tar.bz2
upstream-f07e572f6447465d8938679533d604e402b0f066.zip
bcm27xx: import latest patches from the RPi foundation
bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G bcm2710: boot tested on RPi 3B v1.2 bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0664-driver-char-rpivid-Don-t-map-more-than-wanted.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.4/950-0664-driver-char-rpivid-Don-t-map-more-than-wanted.patch51
1 files changed, 0 insertions, 51 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0664-driver-char-rpivid-Don-t-map-more-than-wanted.patch b/target/linux/bcm27xx/patches-5.4/950-0664-driver-char-rpivid-Don-t-map-more-than-wanted.patch
deleted file mode 100644
index afc1a5a6a8..0000000000
--- a/target/linux/bcm27xx/patches-5.4/950-0664-driver-char-rpivid-Don-t-map-more-than-wanted.patch
+++ /dev/null
@@ -1,51 +0,0 @@
-From 8c2369b39b1dafe7a26907173bb47d37ec53bfa2 Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.com>
-Date: Tue, 21 Apr 2020 11:30:23 +0100
-Subject: [PATCH] driver: char: rpivid: Don't map more than wanted
-
-Limit mappings to the permitted range, but don't map more than asked
-for otherwise we walk off the end of the allocated VMA.
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.com>
----
- drivers/char/broadcom/rpivid-mem.c | 12 ++++++------
- 1 file changed, 6 insertions(+), 6 deletions(-)
-
---- a/drivers/char/broadcom/rpivid-mem.c
-+++ b/drivers/char/broadcom/rpivid-mem.c
-@@ -100,6 +100,7 @@ static int rpivid_mem_mmap(struct file *
- {
- struct rpivid_mem_priv *priv;
- unsigned long pages;
-+ unsigned long len;
-
- priv = file->private_data;
- pages = priv->regs_phys >> PAGE_SHIFT;
-@@ -107,14 +108,13 @@ static int rpivid_mem_mmap(struct file *
- * The address decode is far larger than the actual number of registers.
- * Just map the whole lot in.
- */
-- vma->vm_page_prot = phys_mem_access_prot(file, pages,
-- priv->mem_window_len,
-+ len = min(vma->vm_end - vma->vm_start, priv->mem_window_len);
-+ vma->vm_page_prot = phys_mem_access_prot(file, pages, len,
- vma->vm_page_prot);
- vma->vm_ops = &rpivid_mem_vm_ops;
- if (remap_pfn_range(vma, vma->vm_start,
-- pages,
-- priv->mem_window_len,
-- vma->vm_page_prot)) {
-+ pages, len,
-+ vma->vm_page_prot)) {
- return -EAGAIN;
- }
- return 0;
-@@ -156,7 +156,7 @@ static int rpivid_mem_probe(struct platf
- ioresource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (ioresource) {
- priv->regs_phys = ioresource->start;
-- priv->mem_window_len = ioresource->end - ioresource->start;
-+ priv->mem_window_len = (ioresource->end + 1) - ioresource->start;
- } else {
- dev_err(priv->dev, "failed to get IO resource");
- err = -ENOENT;