diff options
| author | Alan Stern <stern@rowland.harvard.edu> | 2016-06-23 14:54:37 -0400 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2016-07-12 08:47:09 -0400 |
| commit | 4c2b0216cdf54e81f7c0e841b5bb1116701ae25b (patch) | |
| tree | 7857c81e19d9aa9d2e17f064156fecb10079f2a1 /include | |
| parent | 1f5d0686569854939e2fa1afc12ae945e3d813be (diff) | |
USB: EHCI: declare hostpc register as zero-length array
[ Upstream commit 7e8b3dfef16375dbfeb1f36a83eb9f27117c51fd ]
The HOSTPC extension registers found in some EHCI implementations form
a variable-length array, with one element for each port. Therefore
the hostpc field in struct ehci_regs should be declared as a
zero-length array, not a single-element array.
This fixes a problem reported by UBSAN.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Wilfried Klaebe <linux-kernel@lebenslange-mailadresse.de>
Tested-by: Wilfried Klaebe <linux-kernel@lebenslange-mailadresse.de>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb/ehci_def.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/usb/ehci_def.h b/include/linux/usb/ehci_def.h index daec99af5d54..1c88b177cb9c 100644 --- a/include/linux/usb/ehci_def.h +++ b/include/linux/usb/ehci_def.h @@ -178,11 +178,11 @@ struct ehci_regs { * PORTSCx */ /* HOSTPC: offset 0x84 */ - u32 hostpc[1]; /* HOSTPC extension */ + u32 hostpc[0]; /* HOSTPC extension */ #define HOSTPC_PHCD (1<<22) /* Phy clock disable */ #define HOSTPC_PSPD (3<<25) /* Port speed detection */ - u32 reserved5[16]; + u32 reserved5[17]; /* USBMODE_EX: offset 0xc8 */ u32 usbmode_ex; /* USB Device mode extension */ |