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| author | Patrick Boettcher <pb@linuxtv.org> | 2009-05-20 10:42:33 +0200 |
|---|---|---|
| committer | Patrick Boettcher <pb@linuxtv.org> | 2009-05-20 10:42:33 +0200 |
| commit | 7965383d6db294fc173ab00dd9f407f4af871ef7 (patch) | |
| tree | b750dec182721a6225c77cb41a0bb9ec176946f7 /linux/drivers/media/dvb/dvb-usb/dib0700.h | |
| parent | 6e94aca63322b3d936465135c50d873d53b56c93 (diff) | |
| download | mediapointer-dvb-s2-7965383d6db294fc173ab00dd9f407f4af871ef7.tar.gz mediapointer-dvb-s2-7965383d6db294fc173ab00dd9f407f4af871ef7.tar.bz2 | |
DIBUSB_MC : fix i2c to not corrupt eeprom in case of strange read pattern
From: matthieu castet <castet.matthieu@free.fr>
dibusb_i2c_xfer seems to do things very dangerous :
it assumes that it get only write/read request or write request.
That means that read can be understood as write. For example a program
doing
file = open("/dev/i2c-x", O_RDWR);
ioctl(file, I2C_SLAVE, 0x50)
read(file, data, 10)
will corrupt the eeprom as it will be understood as a write.
Priority: normal
Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr>
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Diffstat (limited to 'linux/drivers/media/dvb/dvb-usb/dib0700.h')
0 files changed, 0 insertions, 0 deletions